View Full Cisco CCNP Security 300-730 Exam Dumps and Practice Test Dumps.

 

Question 1

Which Cisco technology provides centralized policy management for network security devices?

1. Cisco Secure Firewall Management Center
2. Cisco AnyConnect
3. Cisco Secure Client
4. Cisco Umbrella

Correct Answer: 1

Explanation

Cisco Secure Firewall Management Center provides centralized management and policy administration for Cisco Secure Firewall devices. It allows administrators to configure access control policies, intrusion policies, network objects, NAT rules, and other security features from a centralized interface. This approach is useful in environments where multiple firewalls need consistent security policies and centralized monitoring. Cisco Secure Client is primarily an endpoint security and connectivity application, while Cisco Umbrella provides cloud-delivered security and DNS-layer protection. Centralized management also helps administrators maintain visibility into firewall events, connections, and policy enforcement across managed security infrastructure.

Question 2

Which protocol is commonly used to establish an IPsec VPN tunnel?

1. FTP
2. IKE
3. SMTP
4. SNMP

Correct Answer: 2

Explanation

IKE, or Internet Key Exchange, is used to negotiate security parameters and establish keys for IPsec VPN connections. IKE allows VPN peers to authenticate each other and negotiate cryptographic algorithms, authentication methods, and other security parameters. Modern Cisco deployments commonly use IKEv2 because it provides improved negotiation capabilities and simplified message exchanges compared with IKEv1. FTP is used for file transfers, SMTP handles email transmission, and SNMP is primarily used for network management. IKE itself negotiates the security association, while IPsec protocols provide the actual protection of data transmitted through the VPN tunnel.

Question 3

Which security technology provides protection against unauthorized access to a Cisco network by inspecting traffic according to configured policies?

1. DNS
2. NTP
3. Firewall
4. DHCP

Correct Answer: 3

Explanation

A firewall controls and inspects network traffic according to configured security policies. Cisco firewalls can evaluate traffic based on parameters such as source and destination addresses, ports, applications, users, URLs, and other security criteria depending on the platform and configuration. This enables administrators to permit legitimate traffic while blocking unauthorized or unwanted connections. DNS resolves domain names, NTP synchronizes time, and DHCP dynamically assigns IP addresses. Firewalls can also provide additional capabilities such as NAT, VPN termination, intrusion prevention, and application visibility. Proper firewall policy design is an important component of a layered network security architecture.

Question 4

Which Cisco security solution provides DNS-layer security and protection against malicious destinations?

1. Cisco Secure Firewall
2. Cisco ISE
3. Cisco Umbrella
4. Cisco Secure Client

Correct Answer: 3

Explanation

Cisco Umbrella provides cloud-delivered security services that include DNS-layer security. It can identify and block requests to malicious, phishing, command-and-control, and other unwanted destinations before a connection is established. Because enforcement can occur at the DNS layer, organizations can gain protection without requiring every security decision to be made by an on-premises firewall. Cisco Umbrella also provides additional security capabilities depending on the subscribed service and deployment architecture. Cisco ISE focuses primarily on identity and network access control, while Cisco Secure Firewall provides firewall and security inspection capabilities. Secure Client provides endpoint connectivity and security functions.

Question 5

Which authentication protocol is commonly used with AAA services to authenticate network administrators?

1. TFTP
2. TACACS+
3. ARP
4. ICMP

Correct Answer: 2

Explanation

TACACS+ is commonly used for centralized authentication, authorization, and accounting of network administrators. Cisco environments frequently use TACACS+ to control administrative access to routers, switches, firewalls, and other infrastructure devices. One major characteristic is the separation of authentication and authorization functions, allowing detailed control over administrative commands. TFTP is used for simple file transfers, ARP resolves IPv4 addresses to MAC addresses, and ICMP is used for network control and diagnostic messaging. Centralized AAA using TACACS+ can improve security by avoiding shared local administrator credentials and providing accounting information about administrative activity.

Question 6

Which VPN technology commonly uses SSL or TLS to provide secure remote-access connectivity?

1. Remote-access SSL VPN
2. GRE
3. OSPF
4. HSRP

Correct Answer: 1

Explanation

An SSL VPN uses SSL/TLS-based security mechanisms to provide encrypted remote access to organizational resources. Cisco remote-access VPN solutions can provide users with secure connectivity from remote locations while applying authentication and access policies. Depending on the deployment, users may access specific applications or establish broader network connectivity through a secure VPN client. GRE is a tunneling protocol that does not inherently provide encryption, OSPF is a routing protocol, and HSRP provides first-hop gateway redundancy. SSL/TLS-based VPN technologies are especially useful for remote users because they can operate across many networks where traditional VPN protocols may face connectivity restrictions.

Question 7

Which Cisco security product provides identity-based network access control?

1. Cisco Secure Firewall
2. Cisco ISE
3. Cisco Umbrella
4. Cisco Secure Client

Correct Answer: 2

Explanation

Cisco Identity Services Engine, or Cisco ISE, provides identity-based access control and policy enforcement for network environments. It can authenticate users and devices and apply authorization policies based on identity, device characteristics, location, security posture, and other contextual information. Cisco ISE supports technologies such as 802.1X and can integrate with network infrastructure to control access to wired and wireless resources. Cisco Secure Firewall focuses on traffic security and firewall enforcement, while Cisco Umbrella provides cloud security services and DNS-layer protection. ISE is therefore particularly important when organizations need centralized identity-aware network access policies.

Question 8

Which IPsec protocol provides authentication and integrity but does not provide encryption?

1. ESP
2. IKE
3. AH
4. TLS

Correct Answer: 3

Explanation

Authentication Header, or AH, provides authentication and integrity protection for IP packets but does not encrypt the packet payload. Because AH does not provide confidentiality, it is less commonly used in modern VPN deployments compared with ESP. Encapsulating Security Payload, or ESP, can provide confidentiality through encryption along with integrity and authentication capabilities. IKE is responsible for negotiating IPsec security associations and cryptographic parameters rather than directly protecting user traffic. TLS is a separate security protocol commonly used to protect application-layer communications. Understanding the distinction between AH and ESP is important when selecting appropriate IPsec security mechanisms.

Question 9

Which Cisco technology can enforce security policies based on user identity and device information?

1. Cisco ISE
2. TFTP
3. Syslog
4. NTP

Correct Answer: 1

Explanation

Cisco ISE can use user and device identity information when applying network access policies. It can integrate authentication systems and network devices to determine who or what is attempting to access the network and then apply appropriate authorization rules. For example, different policies can be applied to employees, contractors, guests, or managed devices. ISE can also use contextual information to improve access decisions. Syslog is used for event logging, NTP provides time synchronization, and TFTP provides file transfer functionality. Identity-based policy enforcement helps organizations move beyond simple IP-address-based access control and implement more granular network security policies.

Question 10

Which protocol provides encryption and authentication for IP traffic in an IPsec VPN?

1. ESP
2. ARP
3. DHCP
4. SNMP

Correct Answer: 1

Explanation

Encapsulating Security Payload, or ESP, is an IPsec protocol that can provide confidentiality through encryption as well as integrity and authentication for protected traffic. ESP is widely used in site-to-site and remote-access VPN deployments. The exact algorithms and security parameters are negotiated through IKE. ARP resolves IPv4 addresses to MAC addresses, DHCP provides IP configuration, and SNMP is primarily used for network monitoring and management. ESP can operate in tunnel mode or transport mode. Tunnel mode is commonly used for site-to-site VPNs because it encapsulates the original IP packet within a new IP packet protected by IPsec.

Question 11

Which authentication method uses a shared secret key between communicating devices?

1. Public-key authentication
2. Pre-shared key
3. Certificate revocation
4. Token authentication

Correct Answer: 2

Explanation

A pre-shared key, or PSK, is a shared secret configured on both VPN peers and used during authentication. In an IPsec VPN, the peers use the configured PSK as part of the IKE authentication process. PSK authentication is relatively straightforward to deploy, especially in smaller environments, but managing shared secrets across many devices can become difficult as the network grows. Certificate-based authentication provides a more scalable alternative for large deployments. Public-key infrastructure can automate certificate validation and identity verification. Regardless of the authentication mechanism, strong security policies should be applied to protect credentials and prevent unauthorized access.

Question 12

Which security mechanism helps detect and block malicious network traffic based on known attack signatures and behavioral analysis?

1. NAT
2. DHCP Snooping
3. IPS
4. HSRP

Correct Answer: 3

Explanation

An Intrusion Prevention System, or IPS, monitors network traffic and can detect malicious activity using signatures, reputation information, behavioral analysis, and other inspection techniques. Unlike a traditional monitoring-only intrusion detection system, an IPS can actively take action to block or drop traffic identified as malicious. Cisco security platforms can integrate intrusion prevention capabilities into broader firewall security policies. NAT translates addresses, DHCP Snooping helps protect against unauthorized DHCP servers, and HSRP provides gateway redundancy. IPS is therefore an important security control for identifying and preventing attacks that pass through other basic access-control mechanisms.

Question 13

Which AAA component determines what an authenticated user is allowed to do?

1. Authentication
2. Authorization
3. Accounting
4. Auditing

Correct Answer: 2

Explanation

Authorization determines what an authenticated user or device is permitted to access or perform. In a AAA framework, authentication verifies identity, authorization determines permitted actions or resources, and accounting records information about user activity. For network administration, authorization can control which commands an administrator is allowed to execute on a device. This provides more granular control than simply allowing or denying login access. Cisco environments commonly use TACACS+ for centralized administrative AAA because it supports detailed authorization capabilities. Accounting can provide records for auditing and troubleshooting. Separating these functions allows security administrators to implement more precise access-control policies.

Question 14

Which Cisco VPN technology is commonly used to connect two networks securely across an untrusted network?

1. Site-to-site IPsec VPN
2. Telnet
3. FTP
4. HTTP

Correct Answer: 1

Explanation

A site-to-site IPsec VPN securely connects networks across an untrusted network such as the public Internet. VPN gateways at each location establish an encrypted tunnel and protect traffic exchanged between the networks. IPsec provides security services such as confidentiality, integrity, authentication, and anti-replay protection depending on the configured algorithms and security associations. Telnet and HTTP do not inherently provide the same network-layer VPN protection, while FTP is primarily a file transfer protocol. Site-to-site VPNs are widely used to connect branch offices, data centers, and other organizational locations without requiring dedicated private circuits between every site.

Question 15

Which security feature helps prevent unauthorized devices from connecting through a switch port by limiting allowed MAC addresses?

1. Dynamic ARP Inspection
2. Port Security
3. IP Source Guard
4. DHCP Snooping

Correct Answer: 2

Explanation

Switch port security can restrict which MAC addresses are permitted on a switch interface. Administrators can configure a maximum number of secure MAC addresses and specify how the switch should respond when a violation occurs. This can help prevent unauthorized devices from using protected access ports. DHCP Snooping focuses on identifying trusted DHCP interfaces and building binding information, Dynamic ARP Inspection helps validate ARP traffic, and IP Source Guard can restrict traffic based on IP-to-MAC bindings. Port security is therefore directly associated with controlling device access at the Layer 2 switch-port level.

Question 16

Which Cisco security feature helps protect against rogue DHCP servers?

1. IP Source Guard
2. Port Security
3. DHCP Snooping
4. Dynamic ARP Inspection

Correct Answer: 3

Explanation

DHCP Snooping helps protect a switched network against unauthorized or rogue DHCP servers. It allows administrators to define trusted interfaces where legitimate DHCP server traffic is expected. DHCP server responses received on untrusted interfaces can be blocked. DHCP Snooping also creates a binding database containing information such as MAC address, IP address, VLAN, and interface. Other security mechanisms can use this information. Dynamic ARP Inspection can use DHCP Snooping bindings to validate ARP packets, while IP Source Guard can use the bindings to restrict source addresses. DHCP Snooping is therefore a foundational Layer 2 security feature in Cisco networks.

Question 17

Which protocol is commonly used to securely manage a network device remotely through an encrypted terminal session?

1. Telnet
2. HTTP
3. SSH
4. FTP

Correct Answer: 3

Explanation

SSH, or Secure Shell, provides encrypted remote administrative access to network devices. It protects credentials and management traffic from being transmitted in clear text across the network. SSH is therefore preferred over Telnet, which transmits sessions without encryption. HTTP can be used for web-based management but does not provide the same protection unless HTTPS is used. FTP is designed primarily for file transfers. Cisco devices can be configured to use SSH for secure CLI administration, often with local or centralized AAA authentication. Strong passwords, appropriate privilege controls, and secure management interfaces should also be used to reduce the risk of unauthorized administrative access.

Question 18

Which security technology validates ARP packets against trusted IP-to-MAC bindings?

1. Dynamic ARP Inspection
2. DHCP Snooping
3. Port Security
4. IPsec

Correct Answer: 1

Explanation

Dynamic ARP Inspection, or DAI, helps protect switched networks from ARP spoofing and related attacks. It validates ARP packets by comparing the claimed IP-to-MAC information against trusted binding information, commonly obtained from the DHCP Snooping binding database. ARP packets that fail validation can be dropped. DHCP Snooping itself focuses on DHCP traffic and building trusted bindings, while Port Security controls MAC addresses on switch ports. IPsec protects IP traffic using cryptographic security mechanisms and does not perform Layer 2 ARP validation. DAI is therefore an important security control for reducing ARP-based man-in-the-middle attack opportunities.

Question 19

Which IPsec mode encrypts the original IP packet and adds a new outer IP header?

1. Transport mode
2. Tunnel mode
3. Authentication mode
4. Passive mode

Correct Answer: 2

Explanation

IPsec tunnel mode encapsulates the original IP packet and adds a new outer IP header. The original packet, including its original IP header, is protected within the IPsec tunnel. This mode is commonly used for site-to-site VPNs because VPN gateways can secure traffic between entire networks. Transport mode generally protects the payload of the original IP packet while retaining the original IP header, making it more suitable for certain host-to-host scenarios. Tunnel mode provides a clear separation between the original packet and the outer packet used to transport the encrypted traffic across the network. It is widely associated with gateway-based VPN deployments.

Question 20

Which Cisco security solution is designed to provide secure endpoint connectivity and VPN access?

1. Cisco Umbrella
2. Cisco ISE
3. Cisco Secure Client
4. Cisco Secure Firewall Management Center

Correct Answer: 3

Explanation

Cisco Secure Client provides endpoint security and secure connectivity capabilities, including remote-access VPN functionality in supported deployments. It allows users to establish secure connections to organizational resources while also supporting additional endpoint security features depending on the deployed modules and licensing. Cisco Umbrella focuses on cloud-delivered security and DNS-layer protection, Cisco ISE provides identity-based network access control, and Secure Firewall Management Center centrally manages supported firewall deployments. Secure Client is therefore commonly deployed on user endpoints where secure remote connectivity and endpoint-aware security controls are required. It can also integrate with broader Cisco security architectures for centralized policy and visibility.