{"id":14802,"date":"2026-09-17T07:16:10","date_gmt":"2026-09-17T07:16:10","guid":{"rendered":"https:\/\/www.examlabs.com\/certification\/?p=14802"},"modified":"2026-09-17T07:16:10","modified_gmt":"2026-09-17T07:16:10","slug":"cisco-ccnp-security-300-730-practice-test-questions-and-exam-dumps-part9-q161-180","status":"publish","type":"post","link":"https:\/\/www.examlabs.com\/certification\/cisco-ccnp-security-300-730-practice-test-questions-and-exam-dumps-part9-q161-180\/","title":{"rendered":"Cisco CCNP Security 300-730 Practice Test Questions and Exam Dumps Part9 Q161-180"},"content":{"rendered":"

<\/h1>\n

View Full <\/b>Cisco CCNP Security 300-730 Exam Dumps<\/b><\/a> and Practice Test Dumps.<\/b><\/h2>\n

 <\/p>\n

Question 161<\/b><\/h3>\n

Which Cisco VPN technology uses a centralized Key Server to distribute security policies and cryptographic keys to group members?<\/b><\/p>\n

    \n
  1. DMVPN<\/span><\/li>\n
  2. GETVPN<\/span><\/li>\n
  3. Remote-access VPN<\/span><\/li>\n
  4. SSL inspection<\/span><\/li>\n<\/ol>\n

    Correct Answer: 2<\/b><\/p>\n

    Explanation<\/b><\/h3>\n

    GETVPN uses a centralized Key Server architecture to distribute security policies and cryptographic keys to authorized Group Members. This approach allows multiple sites to participate in a secure group without requiring a separate point-to-point IPsec tunnel between every pair of locations. Group Members register with the Key Server and receive the information needed to encrypt and decrypt protected traffic. GETVPN is particularly useful in enterprise WAN environments where any-to-any communication is required. DMVPN uses NHRP and dynamic tunnel mechanisms, while remote-access VPNs are designed primarily for individual users.<\/span><\/p>\n

    Question 162<\/b><\/h3>\n

    Which DMVPN phase primarily uses the hub as the path for spoke-to-spoke traffic?<\/b><\/p>\n

      \n
    1. Phase 3<\/span><\/li>\n
    2. Phase 2<\/span><\/li>\n
    3. Phase 1<\/span><\/li>\n
    4. Phase 4<\/span><\/li>\n<\/ol>\n

      Correct Answer: 3<\/b><\/p>\n

      Explanation<\/b><\/h3>\n

      DMVPN Phase 1 uses a hub-and-spoke communication model in which spoke routers establish tunnels primarily with the hub. Traffic between two spokes is normally sent through the hub rather than creating a direct spoke-to-spoke tunnel. This architecture is relatively straightforward but can result in additional latency and increased hub utilization when significant spoke-to-spoke traffic exists. Phase 2 introduced direct spoke-to-spoke tunnels using NHRP resolution, while Phase 3 added NHRP redirect and shortcut mechanisms. Understanding the differences between DMVPN phases is important when selecting an appropriate architecture for a scalable enterprise WAN.<\/span><\/p>\n

      Question 163<\/b><\/h3>\n

      Which DMVPN phase supports direct spoke-to-spoke tunnels using NHRP resolution?<\/b><\/p>\n

        \n
      1. Phase 1<\/span><\/li>\n
      2. Phase 2<\/span><\/li>\n
      3. Phase 0<\/span><\/li>\n
      4. Phase 3<\/span><\/li>\n<\/ol>\n

        Correct Answer: 2<\/b><\/p>\n

        Explanation<\/b><\/h3>\n

        DMVPN Phase 2 allows spoke routers to establish direct spoke-to-spoke tunnels. A spoke can use NHRP to resolve the NBMA address of another spoke and then establish a direct IPsec-protected path. This avoids sending all inter-spoke traffic through the hub and can improve efficiency. Phase 1 maintains the traditional hub-and-spoke traffic model, while Phase 3 adds NHRP redirect and shortcut mechanisms to improve scalability and routing behavior. Phase 2 therefore represents an important evolution of DMVPN by enabling dynamic direct communication between branch locations.<\/span><\/p>\n

        Question 164<\/b><\/h3>\n

        Which protocol provides secure key exchange and authentication for IPsec VPN peers?<\/b><\/p>\n

          \n
        1. IKE<\/span><\/li>\n
        2. HTTP<\/span><\/li>\n
        3. ARP<\/span><\/li>\n
        4. DHCP<\/span><\/li>\n<\/ol>\n

          Correct Answer: 1<\/b><\/p>\n

          Explanation<\/b><\/h3>\n

          Internet Key Exchange, or IKE, is responsible for negotiating security parameters and authenticating IPsec VPN peers. It establishes the cryptographic information required to create security associations between the devices. IKE can use authentication methods such as pre-shared keys or digital certificates and can negotiate encryption, integrity, and Diffie-Hellman parameters. HTTP provides web communication, ARP maps IPv4 addresses to MAC addresses, and DHCP provides IP configuration. IKE is therefore a fundamental control-plane component of IPsec VPNs because it establishes the security relationship before protected user traffic is transmitted.<\/span><\/p>\n

          Question 165<\/b><\/h3>\n

          Which IPsec mode is most commonly associated with gateway-to-gateway site-to-site VPNs?<\/b><\/p>\n

            \n
          1. Transport mode<\/span><\/li>\n
          2. Tunnel mode<\/span><\/li>\n
          3. Host mode<\/span><\/li>\n
          4. Access mode<\/span><\/li>\n<\/ol>\n

            Correct Answer: 2<\/b><\/p>\n

            Explanation<\/b><\/h3>\n

            IPsec tunnel mode is commonly used for gateway-to-gateway site-to-site VPNs. In tunnel mode, the entire original IP packet is encapsulated and protected, and a new outer IP header is added for routing between the VPN gateways. This allows internal private networks to communicate securely across an untrusted network such as the Internet. Transport mode generally protects the IP payload while keeping the original IP header and is more commonly associated with host-to-host scenarios. Host mode and access mode are not standard IPsec operating modes. Tunnel mode therefore fits typical site-to-site VPN architectures.<\/span><\/p>\n

            Question 166<\/b><\/h3>\n

            Which IPsec mode normally leaves the original IP header in place while protecting the payload?<\/b><\/p>\n

              \n
            1. Tunnel mode<\/span><\/li>\n
            2. Transport mode<\/span><\/li>\n
            3. Group mode<\/span><\/li>\n
            4. Remote mode<\/span><\/li>\n<\/ol>\n

              Correct Answer: 2<\/b><\/p>\n

              Explanation<\/b><\/h3>\n

              IPsec transport mode protects the payload of the original IP packet while retaining the original IP header. Because the original header remains available for routing, transport mode is commonly used when the IPsec endpoints are the actual hosts communicating with each other. In contrast, tunnel mode encapsulates the complete original packet inside a new packet and adds a new outer IP header. Tunnel mode is therefore more commonly associated with security gateways connecting networks. Group mode and remote mode are not standard IPsec operating modes. Transport mode is useful when host-to-host IPsec protection is required.<\/span><\/p>\n

              Question 167<\/b><\/h3>\n

              Which IPsec security service prevents an attacker from reading the contents of protected traffic?<\/b><\/p>\n

                \n
              1. Integrity<\/span><\/li>\n
              2. Confidentiality<\/span><\/li>\n
              3. Accounting<\/span><\/li>\n
              4. Authorization<\/span><\/li>\n<\/ol>\n

                Correct Answer: 2<\/b><\/p>\n

                Explanation<\/b><\/h3>\n

                Confidentiality prevents unauthorized parties from reading the contents of protected network traffic. In IPsec, confidentiality is typically provided by encryption mechanisms associated with ESP. Encryption converts readable data into ciphertext that cannot be practically understood without the appropriate cryptographic key. Integrity serves a different purpose by detecting unauthorized modification, while accounting records activity and authorization determines permitted actions. Confidentiality is especially important when VPN traffic crosses untrusted networks such as the public Internet. Modern VPN designs often combine confidentiality with integrity, authentication, and anti-replay protection to provide comprehensive traffic security.<\/span><\/p>\n

                Question 168<\/b><\/h3>\n

                Which security service detects whether protected VPN packets were modified while in transit?<\/b><\/p>\n

                  \n
                1. Integrity<\/span><\/li>\n
                2. Confidentiality<\/span><\/li>\n
                3. Compression<\/span><\/li>\n
                4. Address translation<\/span><\/li>\n<\/ol>\n

                  Correct Answer: 1<\/b><\/p>\n

                  Explanation<\/b><\/h3>\n

                  Integrity protection allows a VPN endpoint to determine whether protected data has been modified during transmission. Cryptographic integrity mechanisms generate values that the receiving device can verify against the received packet. If the packet has been altered, the integrity verification can fail and the device can discard the traffic. Confidentiality protects the data from being read, while compression reduces packet size and address translation modifies IP addressing. Integrity is therefore an essential security property of IPsec because encryption by itself does not necessarily provide assurance that traffic was not changed during transit.<\/span><\/p>\n

                  Question 169<\/b><\/h3>\n

                  Which IPsec protection mechanism helps reject duplicate packets captured and retransmitted by an attacker?<\/b><\/p>\n

                    \n
                  1. NAT exemption<\/span><\/li>\n
                  2. Replay protection<\/span><\/li>\n
                  3. URL filtering<\/span><\/li>\n
                  4. DNS inspection<\/span><\/li>\n<\/ol>\n

                    Correct Answer: 2<\/b><\/p>\n

                    Explanation<\/b><\/h3>\n

                    IPsec replay protection helps detect and reject duplicate or improperly sequenced packets. IPsec uses packet sequence numbers and a replay window to determine whether received packets are acceptable. If an attacker captures a legitimate encrypted packet and attempts to send it again, the receiving endpoint can recognize that the sequence number has already been processed or falls outside the acceptable window. Replay protection complements encryption and integrity because those services alone may not prevent valid captured packets from being retransmitted. It is therefore an important part of secure IPsec deployments.<\/span><\/p>\n

                    Question 170<\/b><\/h3>\n

                    Which authentication method requires the same secret to be configured on both VPN peers?<\/b><\/p>\n

                      \n
                    1. Digital certificate<\/span><\/li>\n
                    2. Pre-shared key<\/span><\/li>\n
                    3. OCSP<\/span><\/li>\n
                    4. SCEP<\/span><\/li>\n<\/ol>\n

                      Correct Answer: 2<\/b><\/p>\n

                      Explanation<\/b><\/h3>\n

                      A pre-shared key is a secret value that is configured on both VPN peers and used as an authentication credential during IKE negotiation. The peers must possess matching values for authentication to succeed. PSKs are straightforward to configure and can be appropriate for smaller deployments. However, managing unique secrets across many VPN peers can become difficult as the environment grows. Digital certificates provide a more scalable alternative through PKI. OCSP checks certificate status, while SCEP is used for certificate enrollment. Pre-shared keys therefore provide a simple shared-secret authentication mechanism for IPsec VPNs.<\/span><\/p>\n

                      Question 171<\/b><\/h3>\n

                      Which authentication method is generally more scalable for a large number of VPN peers?<\/b><\/p>\n

                        \n
                      1. Digital certificates<\/span><\/li>\n
                      2. Static MAC addresses<\/span><\/li>\n
                      3. DHCP reservations<\/span><\/li>\n
                      4. Manual ARP entries<\/span><\/li>\n<\/ol>\n

                        Correct Answer: 1<\/b><\/p>\n

                        Explanation<\/b><\/h3>\n

                        Digital certificates provide a scalable authentication mechanism for large VPN deployments. With PKI, each VPN device can receive a certificate issued by a trusted certificate authority. Peers can authenticate each other by validating these certificates instead of requiring administrators to maintain separate shared secrets for every VPN relationship. This reduces the operational burden as the number of devices increases. Static MAC addresses, DHCP reservations, and manual ARP entries do not provide a suitable cryptographic peer-authentication framework. Certificate-based authentication is therefore commonly selected for large-scale VPN architectures where centralized trust management is required.<\/span><\/p>\n

                        Question 172<\/b><\/h3>\n

                        Which PKI component issues and digitally signs certificates?<\/b><\/p>\n

                          \n
                        1. OCSP responder<\/span><\/li>\n
                        2. Certificate Authority<\/span><\/li>\n
                        3. NHRP server<\/span><\/li>\n
                        4. RADIUS server<\/span><\/li>\n<\/ol>\n

                          Correct Answer: 2<\/b><\/p>\n

                          Explanation<\/b><\/h3>\n

                          The Certificate Authority, or CA, is responsible for issuing and digitally signing certificates within a PKI environment. The CA validates certificate requests according to configured policies and creates certificates that bind identities to public keys. Devices can then use those certificates for authentication and trust establishment. An OCSP responder provides certificate-status information, an NHRP server supports dynamic VPN address resolution, and a RADIUS server provides AAA services. The CA is therefore the central trust component responsible for certificate issuance and signing in a PKI-based VPN environment.<\/span><\/p>\n

                          Question 173<\/b><\/h3>\n

                          Which PKI mechanism provides a periodically published list of revoked certificates?<\/b><\/p>\n

                            \n
                          1. SCEP<\/span><\/li>\n
                          2. OCSP<\/span><\/li>\n
                          3. CRL<\/span><\/li>\n
                          4. IKE<\/span><\/li>\n<\/ol>\n

                            Correct Answer: 3<\/b><\/p>\n

                            Explanation<\/b><\/h3>\n

                            A Certificate Revocation List, or CRL, is a periodically published list containing certificates that have been revoked by a certificate authority. Systems can retrieve the CRL and check whether a certificate is included before trusting it. Certificates may be revoked before their expiration if the associated private key is compromised, the device is decommissioned, or another security event occurs. OCSP provides certificate status through an online query rather than a periodically published list. SCEP handles certificate enrollment, while IKE negotiates VPN security associations. CRLs remain an important certificate-revocation mechanism in many PKI environments.<\/span><\/p>\n

                            Question 174<\/b><\/h3>\n

                            Which protocol provides an online query to determine the current revocation status of a certificate?<\/b><\/p>\n

                              \n
                            1. OCSP<\/span><\/li>\n
                            2. CRL<\/span><\/li>\n
                            3. SCEP<\/span><\/li>\n
                            4. NHRP<\/span><\/li>\n<\/ol>\n

                              Correct Answer: 1<\/b><\/p>\n

                              Explanation<\/b><\/h3>\n

                              Online Certificate Status Protocol, or OCSP, allows a system to query an OCSP responder for the status of a specific digital certificate. The response can indicate whether the certificate is currently valid, revoked, or otherwise unavailable for validation. Unlike a CRL, which is periodically published and downloaded, OCSP provides status through an online request. SCEP is primarily associated with certificate enrollment, while NHRP is used for dynamic VPN address resolution. OCSP is particularly useful when timely certificate-status information is important for authentication decisions in security systems such as VPN gateways.<\/span><\/p>\n

                              Question 175<\/b><\/h3>\n

                              Which certificate enrollment protocol can simplify automatic certificate provisioning for network devices?<\/b><\/p>\n

                                \n
                              1. TACACS+<\/span><\/li>\n
                              2. SCEP<\/span><\/li>\n
                              3. RADIUS<\/span><\/li>\n
                              4. NHRP<\/span><\/li>\n<\/ol>\n

                                Correct Answer: 2<\/b><\/p>\n

                                Explanation<\/b><\/h3>\n

                                Simple Certificate Enrollment Protocol, or SCEP, can automate certificate enrollment between network devices and a certificate authority. It allows devices to generate certificate requests and obtain certificates without requiring administrators to manually install each certificate. This can significantly simplify PKI deployment when many routers, firewalls, VPN gateways, or other devices require certificates. TACACS+ and RADIUS provide AAA services, while NHRP supports dynamic address resolution in DMVPN. SCEP is therefore associated with certificate provisioning and management rather than user authentication or VPN packet forwarding.<\/span><\/p>\n

                                Question 176<\/b><\/h3>\n

                                Which Cisco platform is commonly used to centrally manage and monitor supported Secure Firewall devices?<\/b><\/p>\n

                                  \n
                                1. Cisco ISE<\/span><\/li>\n
                                2. Cisco Secure Firewall Management Center<\/span><\/li>\n
                                3. Cisco Umbrella<\/span><\/li>\n
                                4. Cisco Secure Client<\/span><\/li>\n<\/ol>\n

                                  Correct Answer: 2<\/b><\/p>\n

                                  Explanation<\/b><\/h3>\n

                                  Cisco Secure Firewall Management Center provides centralized configuration, monitoring, and policy management for supported Cisco Secure Firewall devices. Administrators can use FMC to manage access-control policies, NAT, VPN configurations, intrusion policies, objects, and other security settings. It also provides centralized visibility into events and traffic. Cisco ISE focuses on identity and network access control, Cisco Umbrella provides cloud-delivered security services, and Cisco Secure Client provides endpoint capabilities. FMC is therefore the appropriate centralized management platform when multiple supported Secure Firewall devices need consistent configuration and monitoring.<\/span><\/p>\n

                                  Question 177<\/b><\/h3>\n

                                  Which firewall feature allows administrators to define rules based on application identity?<\/b><\/p>\n

                                    \n
                                  1. Application Control<\/span><\/li>\n
                                  2. DHCP Snooping<\/span><\/li>\n
                                  3. Port Security<\/span><\/li>\n
                                  4. NHRP<\/span><\/li>\n<\/ol>\n

                                    Correct Answer: 1<\/b><\/p>\n

                                    Explanation<\/b><\/h3>\n

                                    Application Control allows a firewall to identify applications and apply security policies based on application identity. This provides more detailed control than relying only on source and destination IP addresses or TCP and UDP ports. Application-aware policies can allow or block specific applications according to organizational requirements. DHCP Snooping protects switched networks from rogue DHCP servers, Port Security controls MAC addresses on switch interfaces, and NHRP supports dynamic VPN address resolution. Application Control is particularly useful for modern applications that may use changing ports or common protocols, making simple port-based filtering less effective.<\/span><\/p>\n

                                    Question 178<\/b><\/h3>\n

                                    Which Cisco security capability uses reputation-based intelligence to block known malicious network destinations?<\/b><\/p>\n

                                      \n
                                    1. Security Intelligence<\/span><\/li>\n
                                    2. Port Security<\/span><\/li>\n
                                    3. DHCP Snooping<\/span><\/li>\n
                                    4. MACsec<\/span><\/li>\n<\/ol>\n

                                      Correct Answer: 1<\/b><\/p>\n

                                      Explanation<\/b><\/h3>\n

                                      Security Intelligence uses reputation and threat-intelligence information to identify known malicious indicators such as IP addresses and domains. Security policies can use these indicators to block or control connections before they reach internal resources. This capability can provide an additional layer of defense against known malicious infrastructure and can complement deeper inspection technologies such as intrusion prevention and malware analysis. Port Security protects switch access ports, DHCP Snooping protects DHCP operations, and MACsec encrypts and authenticates Layer 2 Ethernet traffic. Security Intelligence therefore focuses on reputation-based threat blocking.<\/span><\/p>\n

                                      Question 179<\/b><\/h3>\n

                                      Which Cisco solution provides DNS-layer protection against known malicious and phishing domains?<\/b><\/p>\n

                                        \n
                                      1. Cisco Secure Client<\/span><\/li>\n
                                      2. Cisco Umbrella<\/span><\/li>\n
                                      3. Cisco ISE<\/span><\/li>\n
                                      4. Cisco Secure Firewall Management Center<\/span><\/li>\n<\/ol>\n

                                        Correct Answer: 2<\/b><\/p>\n

                                        Explanation<\/b><\/h3>\n

                                        Cisco Umbrella provides cloud-delivered DNS-layer security that can identify and block requests to malicious, phishing, and other unwanted domains according to configured security policies. Because enforcement occurs at the DNS layer, protection can be applied before a connection to the destination is established. Umbrella can therefore provide security for users both inside and outside traditional network boundaries, depending on the deployment. Cisco ISE focuses on identity-based network access, Secure Client provides endpoint capabilities, and Secure Firewall Management Center centrally manages supported firewall devices. Umbrella is specifically associated with DNS-layer security enforcement.<\/span><\/p>\n

                                        Question 180<\/b><\/h3>\n

                                        Which AAA protocol is commonly used for granular command authorization on Cisco network devices?<\/b><\/p>\n

                                          \n
                                        1. RADIUS<\/span><\/li>\n
                                        2. DHCP<\/span><\/li>\n
                                        3. TACACS+<\/span><\/li>\n
                                        4. NHRP<\/span><\/li>\n<\/ol>\n

                                          Correct Answer: 3<\/b><\/p>\n

                                          Explanation<\/b><\/h3>\n

                                          TACACS+ is commonly used for administrative AAA on Cisco network devices and supports granular command authorization. This allows organizations to authenticate administrators centrally and control which commands each administrator is permitted to execute. TACACS+ also supports accounting, which can record administrative activity for auditing and troubleshooting. RADIUS is widely used for network access authentication such as 802.1X, while DHCP provides IP configuration and NHRP supports dynamic next-hop resolution for VPN environments. TACACS+ is therefore particularly appropriate when organizations require detailed control over administrative commands and centralized management of device administrator access.<\/span><\/p>\n

                                           <\/p>\n","protected":false},"excerpt":{"rendered":"

                                          View Full Cisco CCNP Security 300-730 Exam Dumps and Practice Test Dumps.   Question 161 Which Cisco VPN technology uses a centralized Key Server to distribute security policies and cryptographic keys to group members? DMVPN GETVPN Remote-access VPN SSL inspection Correct Answer: 2 Explanation GETVPN uses a centralized Key Server architecture to distribute security policies […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1648,1647],"tags":[],"_links":{"self":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/14802"}],"collection":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/comments?post=14802"}],"version-history":[{"count":1,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/14802\/revisions"}],"predecessor-version":[{"id":14821,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/14802\/revisions\/14821"}],"wp:attachment":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/media?parent=14802"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/categories?post=14802"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/tags?post=14802"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}