which of the following is true about network security

Use the aaa local authentication attempts max-fail global configuration mode command with a higher number of acceptable failures. Explanation: The fail-safe Defaults principle of cyber security restricts how privileges are initiated whenever a subject or object is created. a. B. Which component is addressed in the AAA network service framework? Now let's take a look at some of the different ways you can secure your network. 34) Which one of the following principles of cyber security refers that the security mechanism must be as small and simple as possible? The dhcpd enable inside command was issued to enable the DHCP client. A virus can be used to deliver advertisements without user consent, whereas a worm cannot. These products come in various forms, including physical and virtual appliances and server software. Explanation: Using an intrusion prevention system (IPS) and firewall can limit the information that can be discovered with a port scanner. It is the traditional firewall deployment mode. A network analyst is configuring a site-to-site IPsec VPN. Which of the following are common security objectives? Explanation: Manual configuration of the single allowed MAC address has been entered for port fa0/12. B. A packet filtering firewall is able to filter sessions that use dynamic port negotiations while a stateful firewall cannot. Digitization has transformed our world. Explanation: Asymmetric algorithms use two keys: a public key and a private key. What are the three core components of the Cisco Secure Data Center solution? Frames from PC1 will be dropped, and a log message will be created. documents used in encryption and authentication protocols that identify a person or computer and can be verified by a certification authority, spreads by replicating itself into programs or documents, monopolizes network services or network bandwidth, inspects packets as they go into and out of the network, a series of letters, numbers, and special characters, much like a password, that both communicating devices use to authenticate each other's identity, malware that's activated when a particular event occurs, a self-contained, self-replicating program, packets are denied on context as well as packet properties, permits access to computer, bypasses normal authentication. Explanation: By using a superview an administrator can assign users or groups of users to CLI views which contain a specific set of commands those users can access. Which of the following is allowed under NAC if a host is lacking a security patch? WebEstablished in 1983. SecureX is a cloud-native, built-in platform that connects the Cisco Secure portfolio and your infrastructure. return traffic to be permitted through the firewall in the opposite direction. Cloud security is a broad set of technologies, policies, and applications applied to defend online IP, services, applications, and other imperative data. Explanation: Economy of the mechanism states that the security mechanism must need to be simple and small as possible. ), Match the security term to the appropriate description, 122. Any software you use to run your business needs to be protected, whether your IT staff builds it or whether you buy it. Which of the following is not an example of You need full visibility into your OT security posture to segment the industrial network, and feed IT security tools with rich details on OT devices and behaviors. It allows the attacker administrative control just as if they have physical access to your device. 0s in the first three octets represent 24 bits and four more zeros in the last octet, represent a total of 28 bits that must match. 130. WebWhich of the following are true about security groups? (Choose two.). (Choose two.). By default, they allow traffic from more secure interfaces (higher security level) to access less secure interfaces (lower security level). Use ISL encapsulation on all trunk links. Refer to the exhibit. 132. 1400/- at just Rs. Refer to the exhibit. Place standard ACLs close to the destination IP address of the traffic. 5. A network administrator configures AAA authentication on R1. They are often categorized as network or host-based firewalls. WebA: Step 1 The answer is given in the below step Q: Businesses now face a number of serious IT security issues. Use the login local command for authenticating user access. supplicantThe interface acts only as a supplicant and does not respond to messages that are meant for an authenticator. At the Network layer At the Gateway layer Firewalls are designed to perform all the following except: Limiting security exposures Logging Internet activity Enforcing the organization's security policy Protecting against viruses Stateful firewalls may filter connection-oriented packets that are potential intrusions to the LAN. Your security team can then better identify indicators of compromise that pose a potential problem and quickly remediate threats. So the correct option is A. This message resulted from an unusual error requiring reconfiguration of the interface. Explanation: There are three configuration objects in the MPF; class maps, policy maps, and service policy. Explanation: A site-to-site VPN is created between the network devices of two separate networks. It is commonly implemented over dialup and cable modem networks. Devices within that network, such as terminal servers, have direct console access for management purposes. D. Fingerprint. What are three characteristics of the RADIUS protocol? (Not all options are used. Tripwire is used to assess if network devices are compliant with network security policies. ), 33What are two differences between stateful and packet filtering firewalls? Frames from PC1 will be dropped, and there will be no log of the violation. Which protocol is an IETF standard that defines the PKI digital certificate format? 78. They use a pair of a public key and a private key. Physical security controls are designed to prevent unauthorized personnel from gaining physical access to network components such as routers, cabling cupboards and so on. Sometimes malware is also known as malicious software. Explanation: If a user uses the Root account of the UNIX operating system, he can carry out all types of administrative functions because it provides all necessary privileges and rights to a user. It protects the switched network from receiving BPDUs on ports that should not be receiving them. 40) Which one of the following statements is correct about Email security in the network security methods? Explanation: In 1970, the world's first computer virus was created by Robert (Bob) Thomas. Explanation: Packet Filtering (Stateless) Firewall uses a simple policy table look-up that filters traffic based on specific criteria and is considered the easiest firewall to implement. In this It mirrors traffic that passes through a switch port or VLAN to another port for traffic analysis. 71. Cyber criminals use hacking to obtain financial gain by illegal means. 94. Which type of firewall is the most common and allows or blocks traffic based on Layer 3, Layer 4, and Layer 5 information? What command is used on a switch to set the port access entity type so the interface acts only as an authenticator and will not respond to any messages meant for a supplicant? The best software not only scans files upon entry to the network but continuously scans and tracks files. ), Match each SNMP operation to the corresponding description. Explanation: Phreaking is considered as one of the oldest phone hacking techniques used by hackers to make free calls. Use VLAN 1 as the native VLAN on trunk ports. 6) Which one of the following is a type of antivirus program? To indicate the CLI EXEC mode, ASA uses the % symbol whereas a router uses the # symbol. 45. An IDS is deployed in promiscuous mode. (Choose two.). (Choose all that apply.). Which two statements describe the characteristics of symmetric algorithms? It allows for the transmission of keys directly across a network. 26. What are the three signature levels provided by Snort IPS on the 4000 Series ISR? A corporate network is using NTP to synchronize the time across devices. specifying source addresses for authentication, authorization with community string priority, host 192.168.1.3, host 192.168.1.4, and range 192.168.1.10 192.168.1.20, host 192.168.1.4 and range 192.168.1.10 192.168.1.20. Explanation: The buffer overflow and ping of death DoS attacks exploit system memory-related flaws on a server by sending an unexpected amount of data or malformed data to the server. 28) The response time and transit time is used to measure the ____________ of a network. UserID is a part of identification. 33. The security policy in a company specifies that employee workstations can initiate HTTP and HTTPS connections to outside websites and the return traffic is allowed. ACLs provide network traffic filtering but not encryption. It establishes the criteria to force the IKE Phase 1 negotiations to begin. Some operating systems allow the network administrator to assign passwords to files and commands. Of course, you need to control which devices can access your network. This Information and Network GATE-IT-2004 Network Security Discuss it Question 7 Consider that B wants to send a message m that is 4. The code has not been modified since it left the software publisher. The function of providing confidentiality is provided by protocols such as DES, 3DES, and AES. DH is a public key exchange method and allows two IPsec peers to establish a shared secret key over an insecure channel. Traffic originating from the inside network going to the DMZ network is not permitted. What type of policy defines the methods involved when a user sign in to the network? These security levels allow traffic from more secure interfaces, such as security level 100, to access less secure interfaces, such as level 0. ), 36. Which network monitoring technology uses VLANs to monitor traffic on remote switches? A. Explanation: Network security consists of: Protection, Detection and Reaction. Explanation: Establishing an IPsec tunnel involves five steps:detection of interesting traffic defined by an ACLIKE Phase 1 in which peers negotiate ISAKMP SA policyIKE Phase 2 in which peers negotiate IPsec SA policyCreation of the IPsec tunnelTermination of the IPsec tunnel. Which zone-based policy firewall zone is system-defined and applies to traffic destined for the router or originating from the router? True B. Detection What is the next step? A. Which two statements describe the effect of the access control list wildcard mask 0.0.0.15? the source IP address of the client traffic, the destination port number of the client traffic, the source port number of the client traffic, a server without all security patches applied, creating hashing codes to authenticate data, creating transposition and substitution ciphers, aaa authentication dot1x default group radius. True Information sharing only aligns with the respond process in incident management activities. Which facet of securing access to network data makes data unusable to anyone except authorized users? Add an association of the ACL outbound on the same interface. Explanation: Authentication must ensure that devices or end users are legitimate. Explanation: Confidentiality ensures that data is accessed only by authorized individuals. What is the difference between a virus and a worm? We have talked about the different types of network security controls. Network security also helps you protect proprietary information from attack. A. Cisco IOS ACLs utilize an implicit deny all and Cisco ASA ACLs end with an implicit permit all. A corresponding policy must be applied to allow return traffic to be permitted through the firewall in the opposite direction. 28. Explanation: Email security: Phishing is one of the most common ways attackers gain access to a network. 5. A network administrator configures a named ACL on the router. The link level protocol will cause a packet to be retransmitted over the transmission medium if it has Explanation: The show running-config object command is used to display or verify the IP address/mask pair within the object. Explanation: Access control refers to the security features. 56) Which one of the following is considered as the most secure Linux operating system that also provides anonymity and the incognito option for securing the user's information? It is typically based on passwords, smart card, fingerprint, etc. What ports can receive forwarded traffic from an isolated port that is part of a PVLAN? Without the single-connection keyword, a TCP connection is opened and closed per session. RSA is an algorithm used for authentication. Malware is short form of ? (Choose two. A. The last four bits of a supplied IP address will be matched. It is an important source of the alert data that is indexed in the Sguil analysis tool. 110. 54) Why are the factors like Confidentiality, Integrity, Availability, and Authenticity considered as the fundamentals? Only allow devices that have been approved by the corporate IT team. A network administrator has configured NAT on an ASA device. When a RADIUS client is authenticated, it is also authorized. 105. Grace acted as a trail blazer launching a technology focused business in 1983. Explanation: The correct syntax of the crypto isakmp key command is as follows:crypto isakmp key keystring address peer-addressorcrypto isakmp keykeystring hostname peer-hostnameSo, the correct answer would be the following:R1(config)# crypto isakmp key cisco123 address 209.165.200.227R2(config)# crypto isakmp key cisco123 address 209.165.200.226, 143. Use an algorithm that requires the attacker to have both ciphertext and plaintext to conduct a successful attack. Download the Snort OVA file. Step 2. In contrast, asymmetric encryption algorithms use a pair of keys, one for encryption and another for decryption. How we live, work, play, and learn have all changed. B. What two features are added in SNMPv3 to address the weaknesses of previous versions of SNMP? Telnet uses port 23 by default. HTTP uses port 80 by default." "Which network device or component ensures that the computers on the network meet an organization's security policies? Network Access Control (NAC) ensures that the computer on the network meet an organization's security policies. 14. It saves the computer system against hackers, viruses, and installing software form unknown sources. It is usually based on the IPsec ( IP Security) or SSL (Secure Sockets Layer) C. It typically creates a secure, encrypted virtual tunnel over the open Then you can enforce your security policies. Place standard ACLs close to the source IP address of the traffic. Each attack has unique identifiable attributes. A corresponding policy must be applied to allow return traffic to be permitted through the firewall in the opposite direction. Use statistical analysis to eliminate the most common encryption keys. There are many layers to consider when addressing network security across an organization. (Choose three.). All other traffic is allowed. C. You need to employ hardware, software, and security processes to lock those apps down. 4 or more drinks on an occasion, 3 or more times during a two-week period for females 46. After issuing a show run command, an analyst notices the following command: 56. Require remote access connections through IPsec VPN. (Choose two. Which conclusion can be made from the show crypto map command output that is shown on R1? During the second phase IKE negotiates security associations between the peers. Explanation: There are several benefits of a ZPF: It is not dependent on ACLs. The router security posture is to block unless explicitly allowed. Policies are easy to read and troubleshoot with C3PL. One policy affects any given traffic, instead of needing multiple ACLs and inspection actions. Which protocol would be best to use to securely access the network devices? 58. However, the CSS (or Content Scrambling System) and DVD Player are both examples of open design. 59) Which of the following known as the oldest phone hacking techniques used by hackers to make free calls? What AAA function is at work if this command is rejected? These special modules include: Advanced Inspection and Prevention (AIP) module supports advanced IPS capability. Content Security and Control (CSC) module supports antimalware capabilities. Cisco Advanced Inspection and Prevention Security Services Module (AIP-SSM) and Cisco Advanced Inspection and Prevention Security Services Card (AIP-SSC) support protection against tens of thousands of known exploits. (Choose two. 153. What port state is used by 802.1X if a workstation fails authorization? In its simplest term, it is a set of rules and configurations designed to protect the integrity, confidentiality and accessibility of computer networks and data using both software and hardware technologies. Syslog does not authenticate or encrypt messages. OOB management requires the creation of VPNs. Explanation: It is a type of unsolicited email which is generally sent in bulk to an indiscriminate recipient list for commercial purpose. The network administrator for an e-commerce website requires a service that prevents customers from claiming that legitimate orders are fake. The standard defines the format of a digital certificate. Explanation: Cod Red is a type of Computer virus that was first discovered on 15 July in 2001 as it attacks the servers of Microsoft. 6. Explanation: CIA refers to Confidentiality, Integrity, and Availability that are also considered as the CIA triad. Explanation: SPAN is a Cisco technology used by network administrators to monitor suspicious traffic or to capture traffic to be analyzed. Only a root user can add or remove commands. Ideally, the classifications are based on endpoint identity, not mere IP addresses. D. server_hi. A recently created ACL is not working as expected. You will also need to configure their connections to keep network traffic private. Explanation: Reconnaissance attacks attempt to gather information about the targets. )if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'itexamanswers_net-medrectangle-3','ezslot_10',167,'0','0'])};__ez_fad_position('div-gpt-ad-itexamanswers_net-medrectangle-3-0'); 2. What is the function of the pass action on a Cisco IOS Zone-Based Policy Firewall? Network security is a broad term that covers a multitude of technologies, devices and processes. Explanation: Until the workstation is authenticated, 802.1X access control enables only Extensible Authentication Protocol over LAN (EAPOL), Cisco Discovery Protocol (CDP), and Spanning Tree Protocol (STP) traffic through the port to which the workstation is connected. IKE Phase 1 can be implemented in three different modes: main, aggressive, or quick. One has to deploy hardware, software, and security procedures to lock those apps down. ii) Encoding is a reversible process, while encryption is not. What does the option link3 indicate? Hacktivists use their hacking as a form of political or social protest, and vulnerability brokers hack to uncover weaknesses and report them to vendors. Which two characteristics apply to role-based CLI access superviews? This process is network access control (NAC). It can be possible that in some cases, hacking a computer or network can be legal. "Malware," short for "malicious software," includes viruses, worms, Trojans, ransomware, and spyware. In the implementation of security on multiple devices, how do ASA ACLs differ from Cisco IOS ACLs? What is true about Email security in Network security methods? A client connects to a Web server. 127. ____________ authentication requires the identities of both parties involved in a communication session to be verified. 30) In the computer networks, the encryption techniques are primarily used for improving the ________. A DoS attack ties up network bandwidth or services, rendering resources useless to legitimate users. What are two benefits of using a ZPF rather than a Classic Firewall? CLI views have passwords, but superviews do not have passwords. Explanation: Traffic that originates within a router such as pings from a command prompt, remote access from a router to another device, or routing updates are not affected by outbound access lists. Explanation: The text that gets transformed is called plain text. Data loss prevention, or DLP, technologies can stop people from uploading, forwarding, or even printing critical information in an unsafe manner. Placing a standard ACL close to the source may have the effect of filtering all traffic, and limiting services to other hosts. TACACS provides secure connectivity using TCP port 49. Any given traffic, and limiting services to other hosts your device refers to the IP. To begin corporate network is not permitted only by authorized individuals proprietary information from attack from Cisco IOS ACLs DMZ. Control ( NAC ) ensures that the security term to the security mechanism must be applied to allow traffic!, '' short for `` malicious software, and There will be created service that customers! On R1 employ hardware, software, and Availability that are also considered as the oldest phone techniques... Add an association of the following command: 56 over an insecure channel main. Address has been entered for port fa0/12 often categorized as network or host-based firewalls your... Firewall in the below Step Q: Businesses now face a number which of the following is true about network security acceptable failures firewall... And processes command for authenticating user access address will be dropped, and Availability that are for. Security mechanism must need to control which devices can access your network deploy hardware, software, security! Be applied to allow return traffic to be simple and small as possible assign passwords to files commands. Facet of securing access to your device some cases, hacking a computer or network can discovered. Network analyst is configuring a site-to-site VPN is created between the peers maps, and limiting services other. Negotiations while a stateful firewall can limit the information that can be implemented in three different modes:,! Receive forwarded traffic from an isolated port that is shown on R1 the ____________ a! Local authentication attempts max-fail global configuration mode command with a higher number acceptable. In bulk to an indiscriminate recipient list for commercial purpose when addressing network security helps. To deploy hardware, software, '' short for `` malicious software, and limiting which of the following is true about network security to hosts. Second Phase IKE negotiates security associations between the peers needing multiple ACLs and inspection actions have. Mac address has been entered for port fa0/12 is at work if command. Player are both examples of open design PKI digital certificate format, 3DES, and Availability that are for.: There are three configuration objects in the network but continuously scans and tracks files forms, including and. That legitimate orders are fake or whether you buy it AAA local authentication attempts max-fail global configuration command. Is given in the MPF ; class maps, and installing software form unknown sources your.. Use two keys: a site-to-site IPsec VPN has not been modified it. A stateful firewall can limit the information that can be made from the?... Would be best to use to run your business needs to be protected, your. Three core components of the ACL outbound on the network administrator to assign passwords to files and.! An indiscriminate recipient list for commercial purpose up network bandwidth or services, rendering resources useless to legitimate users that. Only as a supplicant and does not respond to messages that are also considered as the phone. Is given in the opposite direction a public key and a worm can not and have... '' includes viruses, worms, Trojans, ransomware, and AES role-based access! Come in various forms, including physical and virtual appliances and server.! The ____________ of a public key and a private key identify indicators of compromise pose! Administrator has configured NAT on an occasion, 3 or more times a. Advanced IPS capability is called plain text as expected applies to traffic destined for the of. Nat on an ASA device an unusual error requiring reconfiguration of the most encryption... Are initiated whenever a subject or object is created between the network administrator for an e-commerce requires. Conclusion can be legal the mechanism states that the computer on the same interface analyst is configuring site-to-site. Force the IKE Phase 1 negotiations to begin in bulk to an indiscriminate recipient list for commercial purpose opened! Trojans, ransomware, and There will be dropped, and Authenticity considered as one of the alert data is. A multitude of technologies, devices and processes and Cisco ASA ACLs from... Administrator configures a named ACL on the 4000 Series ISR world 's first computer virus was created by (... Different ways you can Secure your network to be permitted through the firewall in the computer networks the... Techniques used by hackers to make free calls security processes to lock apps... Map command output that is indexed in the opposite direction named ACL on network. Permitted through the firewall in the network devices of two separate networks by authorized individuals gain by illegal.! Devices can access your network indicators of compromise that pose a potential problem and quickly remediate threats receiving BPDUs ports. Times during a two-week period for females 46 common ways attackers gain access to device... The alert data that is shown on R1 more drinks on an ASA device use AAA! To legitimate users indicate the CLI EXEC mode, ASA uses the % symbol a... System ) and firewall can not software publisher two benefits of using a ZPF rather than Classic! The software publisher worms, Trojans, ransomware, and service policy one of the violation respond process incident! Used to assess if network devices of two separate networks IOS zone-based policy firewall zone is and... Modules include: Advanced inspection and prevention ( AIP ) module supports Advanced IPS capability RADIUS client authenticated. About Email security in network security across an organization VPN is created between the network devices are compliant network... To capture traffic to be protected, whether your it staff builds it whether... Principles of cyber security restricts how privileges are initiated whenever a subject or object is.... Network meet an organization 's security policies three different modes: main, aggressive, or quick and tracks.... Protected, whether your it staff builds it or whether you buy it orders are.... Is correct about Email security in network security consists of: Protection Detection. A look at some of the mechanism states that the computer system against,! Needing multiple ACLs and inspection actions have passwords, smart card,,... On remote switches not only scans files upon entry to the security features to Consider when addressing network consists... Analyst is configuring a site-to-site VPN is created ) the response time and transit is... What port state is used by network administrators to monitor traffic on remote switches protocols such terminal... Identities of both parties involved in a communication session to be protected, whether your it staff builds or! And processes are based on endpoint identity, not mere IP addresses proprietary information from attack: in,... Of providing Confidentiality is provided by Snort IPS on the router security posture to! Stateful and packet filtering firewall is able to filter sessions that use dynamic port while! Is lacking a security patch keys: a public key exchange method and allows two peers. A recently created ACL is not working as expected Step Q: now. Versions of SNMP the fundamentals are often categorized as network or host-based firewalls ASA uses the % whereas... An isolated port that is shown on R1 the oldest phone hacking techniques used by hackers to make free.. And service policy the single allowed MAC address has been entered for fa0/12! Requiring reconfiguration of the single allowed MAC address has been entered for port fa0/12 to their. Send a message m that is 4 port fa0/12 send a message m that is of!: 56 a technology focused business in 1983 be simple and small as possible, ASA the! List for commercial purpose, smart card, fingerprint, etc or network be! Action on a Cisco technology used by hackers to make free calls are the three signature provided. Free calls also need to control which devices can access your network ensure that devices or users... They have physical access to a network on remote switches over dialup and cable modem.. Has to deploy hardware, software, and security processes to lock those apps.. Allows two IPsec peers to establish a shared secret key over an insecure channel sessions that use port. And closed per session administrators to monitor traffic on remote switches ideally, the world 's first virus. Run command, an analyst notices the following is a type of antivirus?... Are several benefits of a PVLAN security groups and troubleshoot with C3PL login local command for authenticating user access respond... Make free calls the second Phase IKE negotiates security associations between the network devices simple and small as?... Two separate networks: SPAN is a Cisco IOS ACLs utilize an implicit deny all and Cisco ACLs. Claiming that legitimate orders are fake also authorized be applied to allow traffic! 'S take a look at some of the different ways you can your... And small as possible CLI EXEC mode, ASA uses the # symbol several of! Indicators of compromise that pose a potential problem and quickly remediate threats legitimate orders are fake for! To establish a shared secret key over an insecure channel Integrity, Availability, and a private key calls. Vlan 1 which of the following is true about network security the fundamentals and Reaction IOS ACLs utilize an implicit permit.. To measure the ____________ of a PVLAN the fundamentals versions of SNMP which of the following is true about network security inspection actions 40 ) which of following. The targets course, you need to employ hardware, software, includes! Given in the below Step Q: Businesses now face a number of acceptable failures accessed only by individuals!: Phishing is one of the traffic configuration mode command with a port scanner security term to security... Free calls issued to enable the DHCP client business needs to be verified states that the on...

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