2023 Latest 100% Exam Passing Ratio - GB0-191-ENU Dumps PDF
Pass Exam With Full Sureness - GB0-191-ENU Dumps with 434 Questions
NEW QUESTION 148
The following statement about the characteristics of PPP is correct. (Multiple choice)
- A. PPP can dynamically allocate IP addresses
- B. PPP can negotiate network addresses
- C. PPP is supported on synchronous and asynchronous links
- D. PPP supports authentication, including PAP authentication and CHAP authentication
Answer: A,B,C,D
NEW QUESTION 149
The command to configure the bridge priority of the switch SWA to 0 is ______.
- A. [SWA-Ethernet1/0/1] stp root priority 0
- B. [SWA] stp root priority 0
- C. [SWA] stp priority 0
- D. [SWA-Ethernet1/0/1] stp priority 0
Answer: C
NEW QUESTION 150
There is a default route in the router's routing table, its destination network segment and mask are both 0.0.0.0, and its next hop is the router's S0/0 interface, then the following description of this route is correct. ______. (Multiple choice)
- A. The priority of this route may be 100
- B. The route has the shortest mask, so the data packet will be forwarded according to the default route only if there is no other route matching the data packet
- C. When the router receives a data packet to the destination address 120.1.1.1, if there is no other exact match in the router table, then the data packet will match this default route
- D. The metric value of this route may be 3
Answer: A,B,C,D
NEW QUESTION 151
Which of the following statements about IP addresses are correct is ______. (Multiple choice)
- A. The IP address with all 1s in the host number is called the network address, which is used to identify all hosts on a network
- B. IP address is usually expressed in dotted decimal notation, for example: 10.110.168.121
- C. The first byte of class A address is 0~126 (127 is reserved for other use)
- D. IP address consists of two parts: network number and host number
Answer: B,D
NEW QUESTION 152
In the switching network shown in the figure, all switches have enabled the STP protocol.
SWA was selected as the root bridge. According to the information in the figure, the ______ port should be set to the Blocking state
- A. P1 of SWC
- B. P1 of SWB
- C. P2 of SWC
- D. Insufficient information, unable to judge
- E. P2 of SWB
Answer: C
NEW QUESTION 153
Two empty-configured MSR routers are directly connected back-to-back through their respective WAN Serial1/0 interfaces, and their interconnection network segment is 192.0.0.0/24.
At the same time, the two routers are connected to their respective LAN segment users through their respective GigabitEthernet0/0:
HostA----GE0/0--MSR-1--S1/0---------S1/0--MSR-2--GE0/0----HostB
Configure RIPv1 on the two routers, and now both routers have learned the RIP route of the opposite LAN segment. So which of the following statements are correct?
- A. If the LAN segment of one of the routers is 10.0.0.0/24, then the routing table of the other router will learn the route of 10.0.0.0/8
- B. The way to exchange RIP packets between the two routers is multicast
- C. RIP packets between two routers are transmitted based on TCP
- D. CHAP authentication can be configured on the WAN interface of the two routers to enhance network security
Answer: A,D
NEW QUESTION 154
The main function of the physical layer of the OSI reference model is ______.
- A. Physical address definition
- B. Transmit bit stream between terminal devices, define voltage, interface, cable standard and transmission distance, etc.
- C. Establish an end-to-end connection
- D. Transfer data from one host to the other host
Answer: B
NEW QUESTION 155
How does RIP avoid routing loops by combining suppression time and route poisoning?
- A. Actively set the suppression time for the route of the faulty network segment, set its metric value to infinity, and send it to other neighbors
- B. After learning a route from an interface, set the metric value of the route to infinity, and set the suppression time, and then send it back to the neighbor router from the original interface
- C. After learning a route from an interface, suppress the setting of the route and send it back to the neighbor router from the original interface
- D. After learning a route from an interface, set the metric of the route to infinity, and send it back to the neighbor router from the original interface
Answer: A
NEW QUESTION 156
Which of the following advantages does the OSI reference model have? (multiple choice)
- A. 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.
- B. 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.
- C. The OSI reference model provides compatibility and standard interfaces between devices and promotes standardization.
- D. None of the above statements are correct.
Answer: B,C
NEW QUESTION 157
Execute display ip routing-table on the router, then the next hop interface displayed in the routing table may be ______.
- A. InLoop0
- B. Vlan500
- C. Null0
- D. Serial 6/0/1
Answer: A,C,D
NEW QUESTION 158
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 first 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. Only the third route will be written into the routing table of MSR-1
- D. These three routes can be replaced by one route ip route-static 192.168.0.0 255.255.252.0 3.3.3.2
Answer: B,D
NEW QUESTION 159
It is found in the routing table of an MSR 30 router that the cost value of the route to the destination network segment 61.232.200.253/22 is 16, so the correct description of this route entry is ______. (Multiple choice)
- A. If the route is learned through the RIP protocol, it is possible that the network 61.232.200.253/22 is malfunctioning
- B. The route can only be a dynamic route
- C. The route may be a static route
- D. If the route is learned through the RIP protocol, then the route may be in a suppressed state
Answer: A,B,D
NEW QUESTION 160
After opening the console to monitor system information, use the ______ command to turn on the screen output of debugging information.
- A. terminal screen
- B. terminal monitor
- C. terminal debugging
- D. terminal information
Answer: C
NEW QUESTION 161
In the router's routing table, there is an entry for a route with a network segment of 10.168.100.0/24, with a Cost of 20 and a Preference of 255, so which of the following statements about this route are correct?
- A. Cost 20 means that the hop count of the route is 20
- B. This route must be learned through dynamic routing
- C. This is an effective dynamic route
- D. The priority of this route is the highest value, which means any route from an untrusted source
Answer: B,C
NEW QUESTION 162
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 destination address of the ICMP packet is 20.1.1.1
- B. There may be a routing loop, because the information shows ttl-exceeded
- C. The command ping 20.1.1.1 was executed on the router with IP address 3.3.3.2
- D. The destination address of the ICMP packet is 3.3.3.2
Answer: A,B,C
NEW QUESTION 163
In the process of establishing a PPP session, when authentication is set but the authentication fails, the PPP link enters the ______ phase.
- A. Authentication
- B. Network
- C. Establish
- D. Terminate
- E. Dead
Answer: D
NEW QUESTION 164
The IP address of a private network device A is 192.168.1.1/24, and its corresponding public network IP address is 2.2.2.1; the IP address of public network device B is 2.2.2.5. If you want B to be able to ping A, which of the following configurations can be used on the NAT device?
- A. nat server protocol icmp global 192.168.1.1 inside 2.2.2.1
- B. acl number 2000 rule 0 permit source 192.168.1.1 0.0.0.255 nat address-group 1 2.2.2.1 interface Ethernet 0/1 nat outbound 2000 address-group 1 no-pat
- C. acl number 2000 rule 0 permit source 192.168.1.1 0.0.0.255 nat address-group 1 2.2.2.1 interface Ethernet 0/1 nat outbound 2000 address-group 1
- D. nat server protocol icmp global 2.2.2.1 inside 192.168.1.1
Answer: D
NEW QUESTION 165
The two routers of the customer are connected back-to-back through V.35 cables, and the PPP protocol is running on the V.35 interface, and the following interface information is available on one of the routers:
[MSR-Serial0/0]display interface Serial 0/0
Serial6/0 current state: UP
Line protocol current state: DOWN
From the above information, it can be inferred that ______. (Multiple choice)
- A. The LCP negotiation of PPP may not pass
- B. PPP verification may have failed
- C. The IP addresses of the V.35 interfaces of the two routers may not be in the same network segment
- D. The physical connection between the two routers is normal, but the PPP protocol negotiation is not successful
Answer: A,B,D
NEW QUESTION 166
Three MSR routers are connected in the same LAN network, as shown in the figure. Run OSPF on the LAN interconnection network segment of the three routers, and the DR priorities of RTA, RTB, and RTC are 2, 2, and 3 respectively.
Due to the failure of the RTC LAN link, only RTA and RTB are currently working normally, and the OSPF neighbor status between RTA and RTB is stable. So _____ . (Multiple choice)
- A. After the RTC link is restored, two OSPF adjacencies will be established in the network
- B. After the RTC link is restored, the OSPF adjacency status of RTC and RTB is FULL
- C. After the RTC link is restored, the DR will be reselected in the network, and the RTC will become the new DR
- D. After the RTC link is restored, 3 OSPF adjacencies will be established in the network
Answer: B,D
NEW QUESTION 167
After executing the display command on the switch SWA, the switch output is as follows:
<Switch>display link-aggregation summary
Aggregation Interface Type:
BAGG - Bridge-Aggregation, RAGG - Route-Aggregation
Aggregation Mode: S - Static, D - Dynamic
Loadsharing Type: Shar - Loadsharing, NonS - Non-Loadsharing
Actor System ID: 0x8000, 000f-e267-6c6a
AGG AGG Partner ID Select Unselect Share
Interface Mode Ports Ports Type
-------------------------------------------------- --------------------
BAGG1 S none 3 0 Shar
It can be judged from the above output ______. (Multiple choice)
- A. The type of aggregation group is dynamic aggregation
- B. The aggregation group contains 3 active ports
- C. The type of aggregation group is static aggregation
- D. There is no active port in the aggregation group
Answer: B,C
NEW QUESTION 168
The address of the GE0/0 interface of the router MSR-1 is 192.168.100.1/24. This interface is connected to a Layer 3 switch, and this Layer 3 switch is the default gateway for multiple network segments of the customer's office network. 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.
For security reasons, it is necessary to prohibit the client host from pinging the GE0/0 interface of MSR-1, so the following ACL is configured on the router:
acl number 3008
rule 0 deny icmp source 192.168.1.0 0.0.0.255
At the same time, the ACL is applied in the inbound direction of GE0/0. It is found that users on the 192.168.0.0/24 network segment in the LAN can still ping the GE0/0 interface address. According to the above information, _______ can be inferred.
- A. The ACL does not take effect
- B. The ACL is applied in the wrong direction
- C. After the shutdown and undo shutdown commands are executed on the interface GE0/0, the 192.168.0.0/24 network segment will not be able to ping the MSR-1 Ethernet interface address.
- D. The default firewall rule is to allow
Answer: D
NEW QUESTION 169
It is required to set a subnet mask to divide a class B network 172.16.0.0 into seven subnets, and each subnet should contain as many hosts as possible, so the subnet mask should be _____. (Dotted decimal format) slightly
Answer:
Explanation:
255.255.224.0
NEW QUESTION 170
802.1x defines the port-based network access control protocol, and only defines the point-to-point connection between the access device and the access port. The access port can only be a physical port.
- A. correct
- B. error
Answer: B
NEW QUESTION 171
The network administrator of a certain enterprise needs to set a subnet mask to divide the class C network 211.110.10.0 that he is responsible for into at least 8 subnets. How many subnet masks can be used for division? (multiple choice)
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
Answer: A,C,E
NEW QUESTION 172
......
Verified GB0-191-ENU dumps Q&As - 100% Pass from Test4Cram: https://pass4sure.test4cram.com/GB0-191-ENU_real-exam-dumps.html