GB0-191-ENU Exam Dumps Pass with Updated 2023 Certified Exam Questions
GB0-191-ENU Exam Questions - Real & Updated Questions PDF
NEW QUESTION # 232
The WAN link between the two routers MSR-1 and MSR-2 uses the PPP protocol. The two ends learn each other's routes by configuring RIP. Currently, the route learning is normal. Now the following commands are added to the RIP configuration of MSR-1:
[MSR-1-rip-1] silent-interface all
So ______ . (Multiple choice)
- A. After configuring this command, the RIP route in the MSR-2 routing table disappears immediately
- B. This command makes all interfaces of MSR-1 only send routing updates and not accept routing updates
- C. After configuring this command, the RIP route in the MSR-1 routing table disappears immediately
- D. This command makes all interfaces of MSR-1 only receive routing updates without sending routing updates
Answer: D
NEW QUESTION # 233
Divide a class C network into subnets. If all 0 and all 1 subnets are not valid subnets, then use a 26-bit mask to subnet the network. The number of effective subnets that can be divided is ______. (Please fill in Arabic numerals)
Answer:
Explanation:
2
NEW QUESTION # 234
Use the ______ command to configure static routes on the MSR router.
- A. ip static-route
- B. route-static
- C. static-route
- D. ip route-static
Answer: D
NEW QUESTION # 235
The customer's network connection is shown in the figure.
Among them, the IP addresses of RTA, RTB, and RTC are respectively 2.2.2.1/24, 2.2.2.2/24, 2.2.2.3/24. To realize the intercommunication between RTA, RTB and RTC, configure the following frame relay MAP on RTA correct ?
- A. fr map ip 2.2.2.1 40
- B. fr map ip 2.2.2.2 40
- C. fr map ip 2.2.2.1 40 60
- D. fr map ip 2.2.2.3 50
Answer: B,D
NEW QUESTION # 236
Use the ______ command to specify the operating system software to be used for the next startup.
- A. startup
- B. boot startup
- C. bootfile
- D. boot-loader
Answer: D
NEW QUESTION # 237
Two empty-configured MSR routers RTA and RTB are interconnected back-to-back through their Serial1/0 interfaces. Do the following configuration on the two routers:
RTA: skip
[RouterA-Serial1/0] link-protocol fr ietf
[RouterA-Serial1/0] ip address 10.1.1.1 30
[RouterA-Seria11/0] fr map ip 10.1.1.2 30
RTB: [RouterB-Serial1/0] link-protocol fr ietf
[RouterB-Serial1/0] interface serial0/0.1
[RouterB-Serial1/0.1] ip address 10.1.1.2 30
[RouterB-Serial1/0.1] fr map ip 10.1.1.1 30
The physical link between the routers is good, so the correct statement below is ______. (Multiple choice)
- A. In the above configuration, if you only change the type of sub-interface serial0/0.1 on RTB to P2MP, then you cannot ping 10.1.1.2 on RTA.
- B. In the above configuration, if you only change the type of sub-interface serial0/0.1 on RTB to P2MP, then you can ping 10.1.1.2 on RTA
- C. You can ping 10.1.1.2 on RTA
- D. Can't ping 10.1.1.2 on RTA
- E. DLCI is not configured on the two routers, and RTB cannot be pinged on RTA
Answer: A,D
NEW QUESTION # 238
It is required to set a subnet mask to divide a class B network 172.16.0.0 into as many subnets as possible. Each subnet requires 500 hosts, so the subnet mask should be _____. (Dotted decimal format) slightly
Answer:
Explanation:
255.255.254.0
NEW QUESTION # 239
The customer's network connection looks like:
HostA----GE0/0--MSR-1--S1/0-----WAN-----S1/0--MSR-2--GE0/0----HostB
The two MSR routers are interconnected through the WAN, and the physical connection is now normal. The address of interface S1/0 of MSR-1 is 3.3.3.1/30, and the address of interface S1/0 of MSR-2 is 3.3.3.2/30. Now the following three static routes are configured on MSR-1:
ip route-static 192.168.1.0 255.255.255.0 3.3.3.2
ip route-static 192.168.2.0 255.255.255.0 3.3.3.2
ip route-static 192.168.0.0 255.255.255.0 3.3.3.2
The 192.168.0.0/22 subnet is the local area network segment where the host HostB is located.
So which of the following descriptions are correct? (multiple choice)
- A. Only the third route will be written into the routing table of MSR-1
- B. All three routes will be written into the routing table of MSR-1
- C. These three routes can be replaced by one route ip route-static 192.168.0.0 255.255.252.0 3.3.3.2
- D. Only the first route will be written into the routing table of MSR-1
Answer: B,C
NEW QUESTION # 240
The transport layer protocol that DNS can use is ______.
- A. NCP
- B. UDP
- C. TCP or UDP
- D. TCP
Answer: C
NEW QUESTION # 241
There are many kinds of WAN interfaces. Which of the following descriptions of WAN interfaces is correct is ______. (Multiple choice)
- 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
Answer: A,B,D
NEW QUESTION # 242
If the broadcast flag in the DHCP Discovery message sent by the DHCP client to the DHCP relay is 0, the DHCP relay responds to the DHCP offer message of the DHCP client with ______.
- A. broadcast
- B. multicast
- C. unicast
- D. anycast
Answer: C
NEW QUESTION # 243
On the MSR router, each functional module has its corresponding information display command. Generally, to view the operating information of each functional module, you need to run the corresponding display commands one by one. In order to collect more information at one time and facilitate daily maintenance or problem location, you can execute the ______ command in any view to display the current statistical information of the main functional modules of the system.
- A. display diagnostic-information
- B. display all
- C. display ip interface
- D. display system-information
Answer: A
NEW QUESTION # 244
The network delay (delay) defines the time required for the network to transmit data from one network node to another network node. Network latency includes ______. (Multiple choice)
- A. propagation delay (propagation delay)
- B. media access delay (access delay)
- C. queuing delay
- D. switching delay (switching delay)
Answer: A,D
NEW QUESTION # 245
Regarding the compressed expression of the IPv6 address 2001:0410:0000:0001:0000:0000:0000:45FF, which of the following is correct? (multiple choice)
- A. 2001:410:0:1:0:0:0:45FF
- B. 2001:410::1::45FF
- C. 2001:410:0:1::45FF
- D. 2001:41:0:1:0:0:0:45FF
Answer: A,D
NEW QUESTION # 246
The three MSR routers are connected as shown in the figure. All three routers belong to OSPF Area 0, and at the same time, the interconnection network segments of the three routers are advertised in Area 0 through the network command. On RTC, the network segment NET-1 is also published in OSPF Area 0 through the network command. The OSPF Cost between the three routers is shown in the figure.
At present, the neighbor status of the three routers is stable, so ______. (Multiple choice)
- A. After the network status is stable, within the next 45 minutes, only Hello packets will be transmitted between OSPF neighbors on the network
- B. For RTB, to reach the destination network segment NET-1 will give priority to RTB--->RTA--->RTC path
- C. There is only one OSPF route to the NET-1 network segment in the RTA routing table
- D. There are two OSPF routes to the destination network segment NET-1 in the RTB routing table
Answer: B,C
NEW QUESTION # 247
The network environment is shown in the figure, ______ is the correct NAPT configuration. (Multiple choice)
- A. acl number 2000 rule 0 permit source 192.168.0.2 0.0.0.255 interface Ethernet 0/1 nat outbound 2000
- B. acl number 2000 rule 0 permit source 192.168.0.2 0.0.0.255 nat address-group 1 1.1.1.1 interface Ethernet 0/1 nat outbound 2000 address-group 1 no-pat
- C. acl number 2000 rule 0 permit source 192.168.0.2 0.0.0.255 interface Ethernet 0/1 nat outbound 2000 address-group 1 no-pat
- D. acl number 2000 rule 0 permit source 192.168.0.2 0.0.0.255 nat address-group 1 1.1.1.1 interface Ethernet 0/1 nat outbound 2000 address-group 1
Answer: A,D
NEW QUESTION # 248
A Layer 3 switch is connected to the GE0/0 interface of the customer's router MSR-1, and this Layer 3 switch is the default gateway for multiple network segments of the customer's office network to which it is connected. MSR-1 is connected to the Internet through the serial port S1/0. The entire network has been interoperable normally, and office network users can access the Internet. Add the following ACL configuration on the router:
firewall enable
acl number 3004
rule 0 deny ip source 192.168.1.0 0.0.0.255
rule 5 permit tcp source 192.168.0.0 0.0.255.255
rule 10 permit icmp
At the same time, ACL 3004 is applied in the inbound direction of GE0/0, then ______. (Multiple choice)
- A. The router prohibits all IP traffic to the Internet from users on the 192.168.1.0/24 network segment from passing through
- B. The router allows users on the 192.168.2.0/24 network segment to pass the FTP data stream sent from the Internet
- C. The router allows users on the 192.168.1.0/24 network segment to pass the WWW service traffic to the Internet
- D. The router allows ICMP packets of all users to pass
Answer: A,B
NEW QUESTION # 249
The customer's network connection looks like:
HostA----GE0/0--MSR-1--S1/0-----WAN----S1/0--MSR-2--GE0/0----HostB
The two MSR routers are interconnected through the WAN, and the physical connection is now normal. The address of interface S1/0 of MSR-1 is 3.3.3.1/30, and the address of interface S1/0 of MSR-2 is 3.3.3.2/30. Now the following 4 static routes are configured on MSR-1:
ip route-static 192.168.1.0 255.255.255.0 3.3.3.2
ip route-static 192.168.2.0 255.255.255.0 3.3.3.2
ip route-static 192.168.3.0 255.255.255.0 3.3.3.2
ip route-static 192.168.4.0 255.255.255.0 3.3.3.2
The 192.168.0.0/22 subnet is the LAN user network segment of MSR-2.
So which of the following descriptions are wrong? (multiple choice)
- A. These four routes can be replaced by one route ip route-static 192.168.1.0 255.255.252.0 3.3.3.2
- B. Only the fourth route will be written into the routing table of MSR-1
- C. Only the first route will be written into the routing table of MSR-1
- D. These four routes will be written into the routing table of MSR-1
Answer: A,B,C
NEW QUESTION # 250
Connect an empty-configured MSR router to the network through GigabitEthernet0/0, GigabitEthernet0/1, Serial1/0, and configure the IP addresses of these three interfaces as 10.1.1.1/30, 12.12.12.224/30, 192.168.10.1 /twenty four .
After configuration, these three interfaces can communicate with the interface of the peer device directly connected, and then add the following configuration on the router:
[MSR]rip
[MSR-rip-1]network 10.0.0.0
[MSR-rip-1]network 192.168.10.0
Then the correct description of the role and intent of this order is ______. (Multiple choice)
- A. The Serial1/0 and GigabitEthernet0/0 interfaces on the router can send and receive RIP packets
- B. The GigabitEthernet0/1 interface on the router does not send RIP packets
- C. If the router's Serial1/0 interface does not receive the RIP Hello message within 90 seconds, then the RIP neighbor state will be set to the initialization state
- D. RIP will also advertise the routing information of the directly connected network segment 192.168.10.0/24 through the router's GigabitEthernet0/0 interface
Answer: A,B,D
NEW QUESTION # 251
The WAN links of the customer's two routers MSR-1 and MSR-2 use the PPP protocol. At the same time, MSR-1 is required as the main verifier to verify MSR-2 through PAP. Then what configuration is required on MSR-2?
- A. [MSR-2-Serial0/0] ppp pap password simple password
- B. [MSR-2-Serial0/0] ppp pap user user
- C. [MSR-2] ppp pap local-user user password simple password
- D. [MSR-2-Serial0/0] ppp pap local-user user password simple password
Answer: D
NEW QUESTION # 252
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