GB0-191-ENU Braindumps PDF, H3C GB0-191-ENU Exam Cram
New 2021 GB0-191-ENU Sample Questions Reliable GB0-191-ENU Test Engine
NEW QUESTION 123
Which part of the subnet division technology is implemented on the basis of the natural classification of IP address division?
- A. Subnet number part
- B. host number part
- C. prefix part
- D. Network number part
Answer: A
NEW QUESTION 124
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. 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.
- B. 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.
- C. On a frame relay network, DLCI 31 can identify MSR-1, and DLCI 82 can identify MSR-2.
- 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.
Answer: B,C,D
NEW QUESTION 125
For the understanding of packet switching, the correct one of the following statements is ______. (Multiple choice)
- A. The transmitted information is divided into packets of a certain length and forwarded in units of packets
- B. Packet switching includes frame-based packet switching and cell-based packet switching
- C. Packet switching is a switching method based on Store-and-Forward switching
- D. Each packet carries the address identification of the receiver and the sender, and the packet can be forwarded directly without any operation, thereby improving efficiency
Answer: A,B,C
NEW QUESTION 126
The following commands were executed on an MSR router:
[MSR]display ip routing-table 100.1.1.1
Then the correct description of this command is ______.
- A. You can view the routing items that match the destination address of 100.1.1.1
- B. This command is incorrect because it does not contain mask information
- C. It is possible that the output of this command is two default routes
- D. You can view the routing entries that match the next hop address as 100.1.1.1
Answer: A,C
NEW QUESTION 127
The DNS domain name server can complete the resolution of domain names to IP addresses, and the server that can provide specific domain name mapping authority information must be ______.
- A. local domain name server
- B. Primary domain name server
- C. Root DNS
- D. Authorized domain name server
Answer: D
NEW QUESTION 128
The default subnet mask for class B addresses is ______.
- A. 255.255.0.0
- B. None of the above is correct
- C. 255.0.0.0
- D. 255.255.255.0
Answer: A
NEW QUESTION 129
The following debug information is viewed on the customer's router MSR 30:
*0.87831022 IP/8/debug_icmp:
ICMP Receive: ttl-exceeded(Type=11, Code=0), Src = 3.3.3.1, Dst = 3.3.3.2; Origi
nal IP header: Pro = 1, Src = 3.3.3.2, Dst = 20.1.1.1, First 8 bytes = 080081FF
ABD40004
*0.87833017 IP/8/debug_icmp:
ICMP Receive: ttl-exceeded(Type=11, Code=0), Src = 3.3.3.1, Dst = 3.3.3.2; Origi
nal IP header: Pro = 1, Src = 3.3.3.2, Dst = 20.1.1.1, First 8 bytes = 08007A2E
ABD40005
Based on this, it can be inferred that ______.
- A. The command ping 20.1.1.1 was executed on the router with IP address 3.3.3.2
- B. The destination address of the ICMP packet is 20.1.1.1
- C. There may be a routing loop, because the information shows ttl-exceeded
- D. The destination address of the ICMP packet is 3.3.3.2
Answer: A,B,C
NEW QUESTION 130
On the MSR router, if you want to specify the source address of the message sent during the ping operation, you should use the ______ parameter.
- A. -a
- B. -d
- C. -s
- D. -I
Answer: A
NEW QUESTION 131
The 802.11b protocol defines 14 channels in the 2.4GHz frequency band, and there is overlap in the frequency spectrum between adjacent channels.
In order to maximize the use of frequency band resources, which set of channels can be used for wireless coverage?
- A. 1, 6, 11
- B. 1, 5, 9
- C. 2, 6, 10
- D. 3, 6, 9
Answer: A
NEW QUESTION 132
Create an aggregate port with port Ethernet1/0/1 and ID 2 on the S3610 switch. The correct command is ______.
- A. [SWA-Ethernet1/0/1] interface bridge-aggregation 2 mode static
- B. [SWA] interface bridge-aggregation 2
- C. [SWA-Ethernet1/0/1] interface bridge-aggregation 2
- D. [SWA] interface bridge-aggregation 2 port Ethernet1/0/1
Answer: D
NEW QUESTION 133
When the source host pings the destination device, if the network works normally, the destination device will respond to the source host with an ICMP_____ packet after receiving the message.
- A. Echo Request
- B. Port-Unreachable
- C. Echo Reply
- D. TTL-Exceeded
Answer: C
NEW QUESTION 134
In the network environment as shown in the figure, two routers are connected back to back by serial ports, and the rate of the interconnection link should be set to 2Mbps. The correct statement below is ______.
- A. Use the baudrate 2048000 command to configure on the synchronization port of the RTB
- B. Use bandrate 2048000 command configuration on the synchronization port of RTA, use virtual-baudrate 2048000 command configuration on the synchronization port of RTB
- C. It is necessary to determine the interface type and the cable meet the V.24 regulations
- D. Use virtual-baudrate 2048000 command to configure on the synchronization port of RTB
- E. Use the baudrate 2048000 command to configure on the synchronization port of RTA
Answer: E
NEW QUESTION 135
The Serial 0/0 and Serial 0/1 interfaces of the router of the Shenzhen branch of XYZ Company are connected to two different ISPs through two WAN lines. Both of these ISPs can visit the website of the Beijing head office at 202.102.100.2.
The following static routes are configured on the routers of the Shenzhen branch:
ip route-static 202.102.100.2 24 Serial 0/0
ip route-static 202.102.100.2 24 Serial 0/1
So which of the descriptions of these two routes is correct? (multiple choice)
- A. Only the first route will be written in the router's routing table
- B. The traffic to Beijing can achieve load sharing through these two routes
- C. The two routes to Beijing can back up each other
- D. Only the second route will be written in the router's routing table
Answer: B,C
NEW QUESTION 136
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. Application loading
- C. Unzip the application
- D. Memory
Answer:
Explanation:
DCAB
NEW QUESTION 137
The two MSR routers MSR-1 and MSR-2 are interconnected back-to-back through their S1/0 interfaces, and their GigabitEthernet0/0 interfaces are respectively connected to the client hosts HostA and HostB: HostA----GE0/0--MSR-1 --S1/0---------S1/0--MSR-2--GE0/0----HostB
By configuring the IP address and routing, HostA can communicate with HostB in the current network. Now the following ACL configuration is added to the router MSR-1:
acl number 3000
rule 0 deny icmp icmp-type echo
interface GigabitEthernet0/0
ip address 192.168.0.1 255.255.255.0
firewall packet-filter 3000 inbound
So which of the following statements are correct? (Multiple choice questions)
- A. I cannot ping my gateway address on HostA, that is, the interface address of GE0/0 on MSR-1
- B. Can ping HostB on MSR-1
- C. Can ping HostA on HostB
- D. Can't ping HostB on HostA
Answer: A,B,C,D
NEW QUESTION 138
The following description about the characteristics of Comware, which is correct is ______.
- A. Support IPv4 and IPv6 dual protocol
- B. Integration of routing and switching functions
- C. Flexible cutting and customization functions
- D. Support multiple CPUs
- E. High reliability and flexible expansion
Answer: A,B,C,D,E
NEW QUESTION 139
The customer's network connection looks like:
HostA----GE0/0--MSR-1--S1/0---------S1/0--MSR-2--GE0/0----HostB
Among them, router MSR-1 and router MSR-2 are interconnected through a dedicated line, and the following three static routes are configured on MSR-1:
ip route-static 10.1.1.0 255.255.255.0 3.3.3.1
ip route-static 10.1.1.0 255.255.255.0 3.3.3.2
ip route-static 10.1.1.0 255.255.255.0 3.3.3.3
10.1.1.0/24 is the LAN segment where the host HostB is located, so which of the following descriptions are correct?
- A. None of the above
- B. Only the first route will be written into the routing table of MSR-1
- C. Only the third route will be written into the routing table of MSR-1
- D. These three routes will be written into the routing table of MSR-1 to form an equivalent route
Answer: A
NEW QUESTION 140
The customer's network connection looks like:
HostA----GE0/0--MSR-1--S1/0---------S1/0--MSR-2--GE0/0----HostB
The network has been correctly configured with the IP address and routing. Currently, HostA and HostB can communicate with each other in the network.
For some security considerations, the customer requires that HostB cannot ping HostA, but at the same time HostA can ping HostB, and the transmission of other messages between HostA and HostB is not restricted, so which of the following statements is correct?
- A. When using the ping command, the ICMP packets between the two hosts are bidirectional, and this single intercommunication requirement cannot be realized
- B. This requirement can be achieved only by configuring ACL on MSR-1
- C. Only configuring ACL on MSR-2 cannot achieve this requirement
- D. This requirement can be achieved only by configuring ACL on MSR-2
- E. Only configuring ACL on MSR-1 cannot achieve this requirement
Answer: B,D
NEW QUESTION 141
The correct configuration command to enable DHCP service on the router is ______.
- A. [Router-dhcp-pool-0] dhcp enable
- B. [Router] dhcp
- C. [Router] dhcp enable
- D. [Router-dhcp-pool-0] dhcp
Answer: C
NEW QUESTION 142
The following two static routes are sequentially configured on the router:
ip route-static 192.168.0.0 255.255.240.0 10.10.202.1 preference 100
ip route-static 192.168.0.0 255.255.240.0 10.10.202.1
So, which of the following statements is correct about these two routes?
- A. The router will only generate the second configured route, and its priority is 0
- B. The routing table will generate two routes to 192.168.0.0, and the two routes are mutual backups
- C. The routing table will generate two routes to 192.168.0.0, and the two routes are load-sharing.
- D. The router will only generate the second configured route, and its priority is 60
Answer: D
NEW QUESTION 143
The following routing information is seen on the MSR router running RIP:
<MSR>display ip routing-table 6.6.6.6
Routing Table: Public
Summary Count: 2
Destination/Mask Proto Pre Cost NextHop Interface
6.6.0/24 RIP 100 1 100.1.1.1 GE0/0
6.0.0.0/8 Static 60 0 100.1.1.1 GE0/0
At this time, the router receives a data packet with a destination address of 6.6.6.6, then ______.
- A. The packet will preferentially match the static route in the routing table because its mask is the shortest
- B. The packet will first match the static route in the routing table because its cost is low
- C. The packet will preferentially match the RIP route in the routing table because it has the longest mask
- D. The packet will match the RIP route in the routing table first, because of its high priority
Answer: C
NEW QUESTION 144
In the following statement about Easy IP, the error is ______.
- A. Easy IP is a special case of NAPT
- B. Easy IP is suitable for NAT device dialing or dynamically obtaining public network IP address
- C. When configuring Easy IP, there is no need to configure ACL to match the packets that need to be translated by NAT
- D. No need to configure NAT address pool when configuring Easy IP
Answer: C
NEW QUESTION 145
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