GB0-191-ENU by H3C Valid Free Exam Practice Test

Question 1

The two routers RTA and RTB are interconnected back-to-back using serial ports. The serial port of RTA is configured with HDLC protocol, and the serial port of RTB is configured with PPP protocol.
Both devices are configured with the correct IP address, then what will happen is ______. (Multiple choice)

A. The physical layer of the RTA serial port is up, and the protocol layer remains up, but RTA cannot ping RTB B. RTB serial port physical layer up, protocol layer down C. The physical and protocol layers of RTA and RTB serial ports are both down D. RTA serial port physical layer down, protocol layer down E. The physical layer of the RTB serial port is down, and the protocol layer is down.

Correct Answer: B

Question 2

Which of the following statements about HDLC is correct is ______. (Multiple choice question)

A. The HDLC protocol is a bit-oriented transport layer protocol. B. The HDLC protocol adopts a unified frame format, so both data messages and protocol messages are transmitted in standard format frames on the HDLC link. C. Any bit stream can be transparently transmitted on the HDLC link. D. HDLC can run on the same/asynchronous link, so it has a wider range of applications.

Correct Answer: B,C

Question 3

Which of the following descriptions about Frame Relay DLCI are wrong? (multiple choice)

A. In the frame relay switching network, the frame relay frame only changes the destination DLCI, that is, the value of the next hop DLCI, and does not change the value of the source DLCI at the sending end B. The range of DLCI that users can use is 15~1007 C. On the same link, each virtual circuit is identified by a unique DLCI D. DLCI is used to identify a physical interface or logical interface on the router

Correct Answer: A,B,D

Question 4

The IP protocol corresponds to layer ______ of the OSI reference model.

A. 3 B. 5 C. 2 D. 1

Correct Answer: A

Question 5

Use the ______ command on the MSR series router to display the current path of the file system.

A. dir B. pwd C. path D. current-path

Correct Answer: B

Question 6

In the OSI reference model, encryption is a function of ______.

A. Session layer B. Presentation layer C. Transport layer D. Physical layer

Correct Answer: B

Question 7

To configure a static route on the router. It is known that the destination address is 192.168.1.0, the mask is 20 bits, the outgoing interface is GigabitEthernet0/0, and the outgoing interface IP address is 10.10.202.1, so which of the following configurations is correct?

A. ip route-static 192.168.1.0 255.255.248.0 10.10.202.1 B. ip route-static 192.168.1.0 255.255.240.0 10.10.202.1 C. ip route-static 192.168.1.0 255.255.240.0 GigabitEthernet0/0 D. ip route-static 192.168.1.0 255.255.248.0 GigabitEthernet0/0

Correct Answer: B

Question 8

A DNS client queries the local domain name server for the IP address of www.sina.com.cn, and the local domain name server usually responds by means of DNS query?

A. Fuzzy query B. Reverse query C. Recursive query D. Iterative query

Correct Answer: C

Question 9

The two empty-configured MSR routers MSR-1 and MSR-2 are interconnected through their respective GE0/0, and their IP addresses are 192.168.1.2/30 and 192.168.1.1/30 respectively.
Then add the following configuration on both routers:
[MSR-ospf-1]area 0 [MSR-ospf-1-area-0.0.0.0]network 192.168.1.1 0.0.0.3
The OSPF Router IDs of the two routers are their respective GE0/0 interface addresses, and there is no other configuration on the two routers.
Then, to ensure that MSR-1 becomes OSPF DR in the next election, which of the following configurations needs to be added? (multiple choice)

A. Configure on MSR-2: [MSR-2-GigabitEthernet0/0]ospf dr-priority 0 B. Configure on MSR-2: [MSR-1-ospf-1]ospf dr-priority 0 C. Configure on MSR-1: [MSR-1-ospf-1]ospf dr-priority 255 D. Configure on MSR-1: [MSR-1-GigabitEthernet0/0]ospf dr-priority 255

Correct Answer: A,D

Question 10

In the process of establishing a PPP session, when the physical layer is unavailable, the PPP link is in the ______ phase.

A. Establish B. Dead C. Terminate D. Network E. Authentication

Correct Answer: B

Question 11

The default subnet mask for class A addresses is ______.

A. None of the above is correct B. 255.0.0.0 C. 255.255.0.0 D. 255.255.255.0

Correct Answer: B

Question 12

The two routers MSR-1 and MSR-2 are interconnected through the S0/0 interface, and the two routers learn the routes of the LAN segment by running the RIP protocol.
See the following configuration commands on MSR-1:
[MSR-1-Serial0/0] rip authentication-mode md5 rfc2453 H3C
Then the correct interpretation of this command is ______. (Multiple choice)

A. Specify the H3C private extended protocol message format for MD5 authentication B. Configure RIP to use MD5 plaintext authentication C. Specify the message format specified by RFC2453 for MD5 authentication D. Configure RIP to use MD5 cipher text authentication

Correct Answer: C,D

Question 13

An enterprise network administrator needs to set a subnet mask to divide the Class C network 211.110.10.0 that he is responsible for into at least 10 subnets. How many subnet masks can be used for division? (multiple choice)

A. 28 B. 26 C. 25 D. 27 E. 29

Correct Answer: A,E

H3C Constructing Small - and Medium - Sized Enterprise Network - GB0-191-ENU Exam Practice Test