QUESTION 21
An Eth-Trunk interface can be used only as a Layer 2 interface.
A. TRUE
B. FALSE

Correct Answer: B

QUESTION 22
Which of the following statements about VLANIF interfaces is/are correct?
A. A VLANIF interface is a Layer 3 interface.
B. Different VLANIF interfaces can use the same IP address.
C. VLANIF interfaces do not need to learn MAC addresses.
D. A VLANIF interface does not have a MAC address.
Correct Answer: A

QUESTION 23
In RSTP mode, both alternate and backup ports cannot forward user traffic ,and cannot receive, process, and send BPDU.
A. TRUE
B. FALSE
Correct Answer: A

QUESTION 24
If the value of the “Type/Length” field of an Ethernet data frame is Ox0800, the length range of the upper-layer packet header carried by the data frame is from 20B to 60B.

A. TRUE
B. FALSE
Correct Answer: A

QUESTION 25
Which of the following statements is true about link aggregation in manual load balancing mode?
A. A maximum of four active interfaces can be configured in manual load balancing mode.
B. The number of active interfaces can be set in manual load balancing mode.
C. In manual load balancing mode, all active interfaces forward data and load balance traffic.
D. In manual load balancing mode, devices at both ends of a link send LACPDUs to each other.
Correct Answer: D
QUESTION 26
Which of the following statements is true about an STP-enabled port in Forwarding state?
A. The port does not process BPDUs or forward user traffic.
B. The port only receives and processes BPDUs and does not forward user traffic.
C. The port forwards user traffic and processes BPDUs.
D. The port creates MAC address entries based on the received user traffic but does not forward user traffic.
Correct Answer: C
QUESTION 27
Which of the following port states is not included in Rapid Spanning Tree Protocol (RSTP)?
A. Learning
B. Blocking
C. Forwarding
D. Discarding

Correct Answer: B

QUESTION 28
Which of the following descriptions regarding the STP forwarding state is incorrect?
A. A port in a forwarding state can receive BPDU.
B. A port in a forwarding state can send BPDU.
C. A port in a forwarding state does not learn the source MAC address of a frame.
D. A port in a forwarding state can forward frames.
Correct Answer: C

QUESTION 29
A hybrid port can be connected to either a user host or a switch.
A. TRUE
B. FALSE
Correct Answer: A

QUESTION 30
Which of the following bridge IDs cannot exist in configuration BPDUs sent by a switch?
A. 0 00-01-02-03-04-CC
B. 8192 00-01-02-03-04-CC
C. 2048 00-01-02-03-04-CC
D. 4096 00-01-02-03-04-CC
Correct Answer: C

QUESTION 31
When two switches are connected through link aggregation, what are the requirements for the interfaces on the two switches?

A. The physical interface IDs of the interconnected switches are the same.
B. The duplex modes of the physical interfaces on the interconnected switches are the same.
C. The models of the optical modules used by the interconnected switches are the same.
D. The physical Interface quantities of the interconnected switches are the same.
E. The physical interface rates of the interconnected switches are the same.

Correct Answer: ABE

QUESTION 32
If the packet matches the deny rule in an ACL, the packet is discarded.
A. TRUE
B. FALSE

Correct Answer: A

QUESTION 33
Network Address and Port Translation (NAPT) allows multiple private IP addresses to be mapped to the same public IP address through different port numbers. Which of the following statements about port numbers in NAPT is true?

A. The mappings between port numbers and private IP addresses must be manually configured.
B. An ACL is required to allocate port numbers.
C. No port number needs to be configured.
D. Only the port number range needs to be configured.
Correct Answer: C

QUESTION 34
The rules in an ACL may overlap. If packets match the rules with loose conditions, the later ACL rules are not processed. In this case, packets cannot match the rules with strict conditions. Therefore, the rules with strict conditions must be arranged in front lines and those with loose conditions must be arranged towards the end.
A. TRUE
B. FALSE
Correct Answer: A

QUESTION 35
A 2 Layer 2 ACL can match information such as the source MAC address, destination MAC address, source IP address, and destination IP address.
A. TRUE
B. FALSE
Correct Answer: B

QUESTION 36
Which of the following statements is true about the application scenarios of DHCP?
A. The DHCP client and DHCP server must be connected to the same switch.
B. Multiple DHCP servers are not allowed on the same network.
C. After receiving a DHCP Request or Offer packet, the DHCP relay agent forwards the packet without modifying the packet format.
D. If the DHCP client and the DHCP server are on different network segments, DHCP packets need to be forwarded through the DHCP relay agent.
Correct Answer: D

QUESTION 37
Which of the following port numbers is used by the FTP control plane?
A. 24
B. 21
C. 23
D. 22
Correct Answer: B

QUESTION 38
What is the main function of DHCP Discover packets?
A. The client sends DHCP Discover packets to search for the DHCP server.
B. The DHCP server sends DHCP Discover packets to respond DHCP Request packets.
C. The client sends DHCP Discover packets for requesting to confirm the configuration or renew the lease time of the IP address.
D. The DHCP Discover packet carries various configuration information.
Correct Answer: A

QUESTION 39
Fit APs can provide wireless services independently of an AC.
A. TRUE
B. FALSE

Correct Answer: B

QUESTION 40
Only one SSID can be bound to each radio of an AP.
A. TRUE
B. FALSE
Correct Answer: B