In the Diff-Serv network, the maximum number of values ​​that can be defined with DSCP is:

In the Diff-Serv network, the maximum number of values ​​that can be defined with DSCP is:A . 3B . 6C . 8D . 64View AnswerAnswer: D

November 23, 2021 No Comments READ MORE +

NAT technology can realize data secure transmission by encrypting data.

NAT technology can realize data secure transmission by encrypting data.A . TrueB . FalseView AnswerAnswer: B

November 23, 2021 No Comments READ MORE +

Which of the following are the main goals of network management? (Multiple Choice)

Which of the following are the main goals of network management? (Multiple Choice)A . Ensure that network users receive the expected network service quality and technical service information.B . Reduce equipment relocation costs.C . Reduce the service life of network equipment and extend the service cycle.D . Help network engineers...

November 23, 2021 No Comments READ MORE +

Regarding the description about the VRRP, which of the following is wrong?

Regarding the description about the VRRP, which of the following is wrong?A . The routers in the VRRP group elect a Master based on priorityB . The master router sends a gratuitous ARP message to notify its virtual MAC address to the device connected to it.C . If the Master...

November 22, 2021 No Comments READ MORE +

NFV is often deployed in which of the following application environments? (Multiple Choice)

NFV is often deployed in which of the following application environments? (Multiple Choice)A . Data CenterB . Network nodeC . User access sideD . Client/ServerView AnswerAnswer: ABC

November 22, 2021 No Comments READ MORE +

In inter-domain packet filtering, which of the following options belongs to the outbound direction?

In inter-domain packet filtering, which of the following options belongs to the outbound direction?A . Trust → untrustB . Untrust → trustC . Untrust → dmzD . trust → localView AnswerAnswer: A

November 22, 2021 No Comments READ MORE +

Configure the remote port mirroring function on the Huawei router to realize the remote port mirroring message, which can be transmitted to the monitoring equipment through the three-layer IP network, the command is:

Configure the remote port mirroring function on the Huawei router to realize the remote port mirroring message, which can be transmitted to the monitoring equipment through the three-layer IP network, the command is:A . mirror-sever destination-IP 10.1.0.1 source-ip 192.168.1.1B . monitor-sever destination-ip10.1.0.1 source-ip 192.168.1.1C . Abserve-sever destination-IP 10.1.0.1 source-ip 192.168.1.1D...

November 22, 2021 No Comments READ MORE +

Man-in-the-middle attacks or IP/MAC spoofing attacks can cause information leakage and other hazards, and they are more common in intranets.

Man-in-the-middle attacks or IP/MAC spoofing attacks can cause information leakage and other hazards, and they are more common in intranets. In order to prevent man-in-the-middle attacks or IP/MAC spoofing attacks, the configuration methods that can be taken are:A . Configure Trusted/Untrusted interface.B . Limit the maximum number of MAC addresses...

November 21, 2021 No Comments READ MORE +

In the MPLS network as shown in the figure, which of the following descriptions is correct? (Multiple Choice)

In the MPLS network as shown in the figure, which of the following descriptions is correct? (Multiple Choice) A . The switch uses a straight connection port to establish a TCP connection.B . The neighbor LDP ID of the switch is the port IP addressC . The neighbor LDP ID...

November 21, 2021 No Comments READ MORE +

In the MPLS VPN network, when the data packet enters the public network and is forwarded, it will be encapsulated with two layers of MPLS labels. Regarding the description of the two layers of labels, which of the following options is wrong? (Multiple Choice)

In the MPLS VPN network, when the data packet enters the public network and is forwarded, it will be encapsulated with two layers of MPLS labels. Regarding the description of the two layers of labels, which of the following options is wrong? (Multiple Choice)A . The outer label of MPLS...

November 21, 2021 No Comments READ MORE +