H3CSE-RS-SW 認定 GB0-372-ENU 試験問題:

1. In the switching network shown in the figure , VLAN 10 is set as Isolate-user-vlan on switch SWA , and VLAN 2 and VLAN 3 are Secondary VLANs of VLAN 10 ; VLAN 4 and VLAN 20 are created on switch SWB , and VLAN 20 is set as Isolate-user-vlan, and VLAN 4 is Secondary VLAN of VLAN 20.
After setting the IP addresses of each device as shown in the figure , check the MAC address table on SWB , and you can determine that SWA belongs to which of the following?

A) VLAN 10
B) VLAN 1
C) VLAN 4
D) VLAN 3
E) VLAN 20
F) VLAN 2

2. After executing the displayinterface Ethernet 1/0/1 command on the switch SWA, the output information is as follows:
[SWA] display interface Ethernet 1/0/1
Ethernet1/0/1 current state: UP
PVID: 10
Mdi type: auto
Link delay is 0 (sec)
Port link-type: trunk
VLAN passing: 1 (default vlan), 10
VLAN permitted: 1 (default vlan), 2-4094
Trunk port encapsulation: IEEE 802.1q
Port priority: 0
what can we learn from the above information? (Multiple choice)

A) Port Ethernet1/0/1 is a Trunk port that only allows data from VLAN 1 and VLAN 10 to pass through.
B) Port Ethernet1/0/1 is a Trunk port, allowing data frames from any VLAN to pass through.
C) Data with VLAN1 tag will not be stripped when it leaves port Ethernet1/0/1.
D) When a data frame without a VLAN tag enters port Ethernet1/0/1, it will be tagged with VLAN1.

3. Regarding the multicast distribution tree model SPT, which of the following statement is correct?
(Multiple choice)

A) Each router on the SPT maintains the (S, G) table entry
B) Each router on the SPT maintains the (*, G) entry
C) Different multicast sources use themselves as roots and independently establish SPTs
D) In the SPT model, the path from the multicast source to any receiver is optimal.

4. In the switching network shown in the figure, VLAN10 is set as Isolate-user-vlan on switch SWA, and VLAN2 and VLAN3 are set as Secondary VLAN of VLAN 10; VLAN4 and VLAN20 are created on switch SWB, and VLAN20 is set as Isolate-user-vlan and VLAN4 is set as Secondary VLAN of VLAN20. After setting the IP addresses of each device as shown in the figure, the local proxy ARP function is enabled on SWA and SWB. Initially, the switch and PC did not learn their corresponding ARP entries. When PCA pings PCB, PCA will send an ARP request. After PCB receives the ARP request message, it sends a destination MAC response with the destination MAC address as?

A) FFFF.FFFF.FFFF
B) 00E0.FC00.0010
C) 0011.1111.1111
D) 00E0.FC00.0020

5. Which of the following statements about wide area networks is wrong?

A) The HDLC protocol can be encapsulated on a synchronous link or an asynchronous link.
B) When the CE1/PRI interface uses the E1 working mode, it is equivalent to an interface with no time slot division and a data bandwidth of 2Mbps. Its characteristics are the same as those of the synchronous serial port. It supports data link layer protocols such as PPP, frame relay, LAPB and X.25, and network protocols such as IP and IPX.
C) The HDLC protocol only supports point-to-point links, not point-to-multipoint links.
D) When the CE1/PRI interface uses the CE1/PRl working mode, it is physically divided into 32 times queues, numbered 0 to 31, among which time slot 0 is used to transmit synchronization information.

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