NEW QUESTION 1

The bridge ID of the STP protocol in the switching network is as follows. Which of the following bridge IDs will be the root bridge? ()

• A. 409600-01-02-03-04-DD
• B. 3276800-01-02-03-04-AA
• C. 3276800-01-02-03-04-CC
• D. 3276800-01-02-03-04-BB

Answer: A

NEW QUESTION 2

The network shown in the figure below. The administrator wants RTA to use a static router. Priority is given to sending data packets to RTB's LoopbackO interface through G0/0/1 port. At the same time, G0/0/2 is used as a backup. Then any configuration on RTA can be Realize this requirement? () (Single-choice question)

• A. ip route-static10.0.2.2255.255.255.25510.0.12.2Ip route-static10.0.2.2255.255.255.25510.0.21.2 preference 40
• B. ip route-static10.0.2.2255.255.255.25510.0.12.2Ip route-static10.0.2.2255.255.255.25510.0.21.2
• C. ip route-static10.0.2.2255.255.255.25510.0.12.2 preference 70 Ip route.-static10.0.2.2255.255.255.25510.0.21.2
• D. ip route-static10.0.2.2255.255.255.25510.0.12.2Ip route-static10.0.2.2255.255.255.25510.0.21.2 preference 70

Answer: D

NEW QUESTION 3

To ensure that the same data flow is forwarded on the same physical link, which load sharing method does the Eth-Trunk adopt? ()

• A. Flow-based load sharing
• B. Packet-based load sharing
• C. Load sharing based on application layer information
• D. Load sharing based on data packet inbound interface

Answer: A

NEW QUESTION 4

When the lease period reaches what percentage does the DHCP client send the lease renewal message for the first time? ()

• A. 0.5
• B. 0.875
• C. 0.25

Answer: B

NEW QUESTION 5

Which of the following packet types is used by RADIUS to indicate authentication rejection? ()

• A. Access-Accept
• B. Access-Request
• C. Access-Challenge
• D. Access-Reject

Answer: D

NEW QUESTION 6

The static MAC. address table will not be lost after the system restarts ()

• A. True
• B. False

Answer: A

NEW QUESTION 7

In the STP protocol, which of the following factors will affect the election of the root switch? ()*

• A. IP address of the switch
• B. Switch interface ID
• C. Switch interface bandwidth port
• D. Switch priority
• E. MAC address of the switch

Answer: DE

NEW QUESTION 8

UDP cannot guarantee the reliability of data transmission, and does not provide the functions of message sequencing and flow control. It is suitable for flows with low transmission reliability requirements but high transmission speed and delay requirements. ()

• A. True
• B. False

Answer: A

NEW QUESTION 9

In the history of WLAN development, which of the following is not included in the main wireless protocol standards in the primary mobile office era? ()

• A. 802.11g
• B. 802.11a
• C. 802.11b
• D. 802.11ac

Answer: D

NEW QUESTION 10

The host uses the IP address 192.168.1.2 to access the Internet-it must go through NAT. ()

• A. True
• B. False

Answer: B

NEW QUESTION 11

Which frequencies does IEEE802.11n support? ()

• A. 2.4GHz
• B. 5GHz
• C. 6GHz

Answer: BC

NEW QUESTION 12

Which of the following information is not included in the MAC address table of the switch? ()

• A. MAC.Address
• B. IP address
• C. VLAN

Answer: C

NEW QUESTION 13

What kind of packets does the OSPF protocol use to discover and maintain neighbor relationships? ()

• A. HELLO
• B. LSU
• C. DD

Answer: B

NEW QUESTION 14

Which of the following elements are included in the routing table? ()*

• A. Interface
• B. Destination/Mask
• C. Protocol
• D. NextHop

Answer: ABCD

NEW QUESTION 15

The router running the 0SPF protocol can reach the FULL state after completing the LSDB. synchronization. ()

• A. True
• B. False

Answer: A

NEW QUESTION 16

Compared with STP, which of the following port roles are newly defined in RSTP? ()*

• A. Designated port
• B. Root port
• C. Alternate port
• D. Backup port

Answer: CD

NEW QUESTION 17

The output information of a certain switch is shown in the figure. Which of the following statements is correct? () (Multiple Choice Questions)

• A. Switch GE0/0/1 port does not carry VLAN TAG when sending VLAN20 data frame
• B. The GE0/0/2 port of the switch carries VLAN TAG when sending VLAN20 data frames
• C. Switch GE0/0/1 port does not carry VLAN TAG when sending VLAN10 data frame
• D. The user manually created 4 VLANs

Answer: ACD

NEW QUESTION 18
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