最新的H3C GB0-191-ENU免費考試真題

問題1

Which of the following statements about IP addresses are correct is ______. (Multiple choice)

A. IP address is composed of 32 binary bits

B. IP address is usually expressed in dotted hexadecimal notation, for example: 10.110.192.111

C. The IP address can be solidified in the hardware and is a unique MAC

D. IP addresses are divided into five categories: A, B, C, D, E

正確答案: A,D

問題2

The MAC address table on a layer 2 switch is shown in the figure.

When the switch receives a frame with a destination MAC address of 00-13-72-8E-4B-C1 from the E1/0/2 interface, the switch will ______ the frame.

A. Send out from the E1/0/1 interface

B. Send out from the E1/0/2 interface

C. send out from E1/0/4 interface

D. Discard directly

E. send out from all interfaces on the switch

F. Send out from the E1/0/3 interface

正確答案: D

問題3

A network environment looks like:
HostA----GE0/0--MSR-1--S1/0-----Frame Relay----S1/0--MSR-2--GE0/0----HostB
Among them, two routers MSR-1 and MSR-2 connect to the frame relay network through S1/0 respectively. Configure IP addresses 3.3.3.1/24 and DLCI 31 on the S1/0 interface of MSR-1, and configure IP addresses 3.3.3.2/24 and DLCI 82 on the S1/0 interface of MSR-2. The physical connection is completely normal, and the other default configurations are the same.
So which of the following statements are wrong? (multiple choice)

A. In the frame relay network exchange process, the source DLCI is always 31, and the destination DLCI will change. Until the last hop, the destination DLCI becomes 82.

B. On a frame relay network, DLCI 31 can identify MSR-1, and DLCI 82 can identify MSR-2.

C. On a frame relay network, the corresponding relationship between DLCI 31 connected to MSR-1 and DLCI 82 connected to MSR-2 must be correctly configured, so that the S1/0 interfaces of the two routers can communicate with each other.

D. After configuring the command ip address negotiate on the S1/0 interface of MSR-1, it can dynamically obtain the address from MSR-2.

正確答案: A,B,D

問題4

It is required to set a subnet mask to divide a Class B network 172.16.0.0 into 30 subnets, and each subnet should contain as many hosts as possible, so the subnet mask should be _____. (Dotted decimal format) slightly

正確答案:

255.255.248.0

問題5

The correct sequence of the steps in the startup process of detecting the router system is _________. (Fill in the code of each step one by one, there can be no spaces in between, such as: ABCD)

A. Start bootrom

B. Unzip the application

C. Memory

D. Application loading

正確答案:

說明：（僅 Fast2test 成員可見）

問題6

The two MSR routers are connected through the WAN and have dynamically completed remote routing learning through RIPv2. At this time, the routing table has reached a stable state. Then within 45 seconds from this moment, the two routers must have the following messages transmitted between the WAN ?

A. RIP Response message

B. RIP Request message

C. RIP Update message

D. RIP Hello time message

正確答案: A

問題7

If a port running STP in the Ethernet switch does not receive or forward data, receives but does not send BPDUs, and does not perform address learning, then the port should be in the ______ state.

A. Disable

B. Listening

C. Forwarding

D. Blocking

E. Learning

F. Waiting

正確答案: D

問題8

SSH uses the TCP port number ______ by default.

A. 22

B. 21

C. 20

D. 23

正確答案: A

問題9

Which of the following advantages does the OSI reference model have? (multiple choice)

A. None of the above statements are correct.

B. The OSI reference model is a theoretical description of the information transmission process that occurs between network devices, and defines how to implement each layer of functions through hardware and software.

C. The OSI reference model provides compatibility and standard interfaces between devices and promotes standardization.

D. An important feature of the OSI reference model is its layered architecture. The layered design method can transform a large and complex problem into several smaller and easy-to-handle problems.

正確答案: C,D

問題10

You see the following prompt information on the router MSR-1:
[MSR-1]display firewall-statistics all
Firewall is enable, default filtering method is'permit'.
Interface: GigabitEthernet0/0
In-bound Policy: acl 3000
Fragments matched normally
From 2008-11-08 2:25:13 to 2008-11-08 2:25:46
0 packets, 0 bytes, 0% permitted,
4 packets, 240 bytes, 37% denied,
7 packets, 847 bytes, 63% permitted default,
0 packets, 0 bytes, 0% denied default,
Totally 7 packets, 847 bytes, 63% permitted,
Totally 4 packets, 240 bytes, 37% denied.
Based on this, it can be inferred that ______. (Multiple choice)

A. ACL 3000 is applied in the inbound direction of GigabitEthernet0/0

B. From the 37% denied in the above information, it can be seen that there are data matching the rules in ACL 3000

C. 0% denied default in the above information means that the default matching rule of the ACL is deny

D. Some packets do not match the rules in ACL 3000, but match the default permit rules

正確答案: A,B,D

問題11

The WAN link between the only two routers MSR-1 and MSR-2 in the customer network adopts the PPP protocol, and the two ends learn each other's routes by configuring RIP. Currently, the route learning is normal, and now it is in the RIP of MSR-1. The following commands are added to the configuration:
[MSR-1-rip-1] silent-interface all
So ______ . (Multiple choice)

A. This command makes all interfaces of MSR-1 only send routing updates and not accept routing updates

B. 10 minutes after configuring this command, the RIP route in the MSR-1 routing table disappears

C. This command makes all interfaces of MSR-1 only receive routing updates without sending routing updates

D. 10 minutes after configuring this command, the RIP route in the MSR-2 routing table disappears

正確答案: C,D

問題12

There are many kinds of WAN interfaces. The following description of the WAN interface is wrong.

A. The V.24 protocol interface can work in both synchronous and asynchronous modes. In the asynchronous mode, the link layer uses PPP encapsulation.

B. The G.703 interface provides high-speed data synchronous communication services.

C. The V.35 protocol interface can work in both synchronous and asynchronous modes. In the asynchronous mode, the link layer uses PPP encapsulation.

D. BRI/PRI interface is used for ISDN access, the default link encapsulation is PPP

正確答案: C

問題13

A network connection is shown in the figure.

All interfaces of the four routers are configured with OSPF, and they are all running in OSPF area 23. All network segments can be connected to each other.
The OSPF Cost of the interconnection links between routers is shown in the figure. Then the correct description below is ______. (Multiple choice)

A. RTC will have two OSPF neighbors

B. RTC calculates the best path to the 192.168.2.0/24 network segment according to the SPF algorithm as C->A->B

C. RTD has the same LSDB as RTA

D. After SPF calculation, the cost value of the path from RTC to 192.168.4.0/24 and to 192.168.2.0/24 is the same, so an equal-cost route will be formed on RTC

正確答案: B,C

問題14

The customer router connects to the operator's network through the S1/0 interface. The S1/0 interface uses the default configuration.
The following route is configured on the router: [MSR]ip route-static 0.0.0.0 0.0.0.0 Serial1/0
However, when viewing the routing table through display ip routing-table, it is found that the route is not displayed in the routing table. Based on this, it is speculated that the possible reason is ______. (Multiple choice)

A. S1/0 interface has no IP address

B. The configuration is wrong, the next hop of the route should enter the IP address of the opposite end instead of the interface name S1/0

C. S1/0 interface is shutdown

D. The configuration is wrong, you should exit to the system view to configure the route to take effect

正確答案: A,C

最新的H3C Constructing Small - and Medium - Sized Enterprise Network - GB0-191-ENU免費考試真題

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