Question 1

If the lease of a client IP address is not extended after 87.5% of the lease is reached, which message is used by the client to extend the IP address lease?

Accepted Answer

The answer of If the lease of a client IP...

Question 2

Which of the following firewalls is the most popular?

Accepted Answer

Stateful firewalls are the most popular because they track the state of active connections and make decisions based on the context of the traffic, providing a balance between security and performance.

Question 3

IP unnumbered is to borrow an IP address from an interface. If an interface has multiple IP addresses, all its IP addresses will be borrowed and the primary address will continue after these IP addresses are borrowed.

Accepted Answer

IP unnumbered allows an interface to borrow an IP address from another interface, but it does not borrow all IP addresses. It typically uses the primary IP address of the specified interface.

Question 4

Which messages are sent from the client to the server? (Choose three.)

Accepted Answer

DHCP REQUEST, DHCP DISCOVER, and DHCP RELEASE are sent from the client to the server.

Question 5

Which encapsulation mode is used for the MPLS protocol on an Ethernet network?

Accepted Answer

MPLS uses Frame mode encapsulation on Ethernet networks, where labels are inserted between the Layer 2 header and the Layer 3 header.

Question 6

When two Eudemons are working in dual-system hot backup mode, their session tables are backed up in real time.

Accepted Answer

In dual-system hot backup mode, session tables are typically synchronized in real-time to ensure seamless failover and continuity of service.

Question 7

The urgent pointer in the flag field of an IPv4 packet header is generally used for OOB data transmission.

Accepted Answer

The urgent pointer in the flag field of an IPv4 packet header is used to indicate the offset from the beginning of the packet data to the first byte of urgent data. This allows for out-of-band (OOB) data transmission, where data can be sent outside of the normal data stream.

Question 8

To enable an Eudemon in routing mode to work like a router, you need to assign IP addresses to interfaces and enable dynamic or static routing protocols on the Eudemon.

Accepted Answer

To function like a router, an Eudemon in routing mode requires IP addresses on its interfaces and routing protocols to manage traffic between networks.

Question 9

Which of the following statements about the firewall technology are true? (Choose three.)

Accepted Answer

The answer of Which of the following statements about the...

Question 10

What is the function of the client IP address field in DHCP messages?

Accepted Answer

The answer of What is the function of the client...

Question 11

Which of the following attacks are prevented after an IP address and MAC address are bound on the Eudemon? (Choose two.)

Accepted Answer

Binding an IP address to a MAC address helps prevent IP address spoofing and MAC address spoofing by ensuring that only the legitimate device with the correct MAC address can use the assigned IP address.

Question 12

The variation in packet delay is called jitter.

Accepted Answer

Jitter refers to the variability in time delay in milliseconds (ms) between data packets over a network.

Question 13

Status detection is an advanced communication filtering mechanism. It checks the application layer protocol and monitors the status of the connection-based application layer protocol. For all connections, the status information about each connection is maintained by ASPF and is used to dynamically determine whether to permit or deny data packets to firewalls.

Accepted Answer

Status detection involves monitoring and maintaining information about the state of connections, which is used to make dynamic decisions about allowing or blocking data packets in firewalls.

Question 14

Which of the following statements about the security policies for the Eudemon are true? (Choose two.)

Accepted Answer

By default, a user in the Untrust zone cannot access the Trust zone.By default, a user in a zone of the firewall cannot access any other zone of the firewall.

Question 15

The end-to-end delay is the sum of transmission delays, processing delays, and queuing delays along the packet forwarding path.

Accepted Answer

End-to-end delay includes all the time taken for a packet to travel from the source to the destination, which encompasses transmission, processing, and queuing delays.

Question 16

Which of the following attacks are DDoS attacks? (Choose four.)

Accepted Answer

The answer of Which of the following attacks are DDoS...

Question 17

In which of the following modes can the Eudemon be working? (Choose three.)

Accepted Answer

The Eudemon can work in routing mode, transparent mode, and composite mode.

Question 18

The Eudemon generates a blacklist upon detecting an attack.

Accepted Answer

The Eudemon is a type of network security device that can detect attacks and generate a blacklist to block malicious traffic.

Question 19

QoS in best-effort service mode uses which of the following queue scheduling technology?

Accepted Answer

FIFO (First-In-First-Out) is used in best-effort service mode because it is a simple and efficient way to manage the queue.

Question 20

In DiffServ mode, before the application program sends packets, it needs to confirm that the network has reserved resources for packet transmission.

Accepted Answer

DiffServ (Differentiated Services) does not require resource reservation before sending packets. It uses a class-based approach to provide different levels of service by marking packets for priority handling, without the need for explicit resource reservation.

Exam 5: HCNP-R&S Fast Track (Huawei Certified Network Professional - Routing & Switching Fast Track)