Latest GB0-191-ENU Actual Free Exam Questions Updated 434 Questions
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NEW QUESTION 191
The correct configuration command to enable DHCP service on the router is ______.
- A. [Router] dhcp enable
- B. [Router-dhcp-pool-0] dhcp
- C. [Router] dhcp
- D. [Router-dhcp-pool-0] dhcp enable
Answer: A
NEW QUESTION 192
The user router S0/0 is connected to the frame relay network, and the following information is displayed on the interface of the router: Serial1/1 current state:UP Line protocol current state:DOWN Internet Address is 3.3.3.2/24 The protocol state of the interface is DOWN, Then analyze ______ accordingly.
- A. The encapsulated LMI type may be inconsistent with the remote end
- B. If the interface is encapsulated with the Frame Relay protocol, the status of the PVC should be DOWN at this time
- C. The interface may encapsulate the PPP protocol
- D. The physical link may be faulty
Answer: A,C
NEW QUESTION 193
During the establishment of the TCP connection as shown in the figure, the Z part of the SYN should be filled with ________.
- A. a
- B. b
- C. a+1
- D. b+1
Answer: D
NEW QUESTION 194
The two routers of the customer are connected back to back by V.35 cables, and one of the routers has the following interface information: [MSR-Serial0/0]display interface Serial 0/0
Serial0/0 current state: UP
Line protocol current state: UP
Description: Serial6/0 Interface
The Maximum Transmit Unit is 1500, Hold timer is 10(sec)
Internet Address is 6.6.6.1/30 Primary
Link layer protocol is PPP
LCP opened, IPCP opened
From the above information, you can know ______. (Multiple choice)
- A. This router has completed PPP negotiation with the remote device, and successfully established a PPP link
- B. You can already ping the peer's address on this router. 6.6.6.2 It is impossible to judge whether the verification is passed, so the peer's address may not be able to ping
- C. The PPP PAP or CHAP verification option has been successfully completed between this router and the remote device. It is impossible to see in the question whether there is verification and whether it has passed
- D. The interface information prompts, the second IP address subordinate can also be configured under this interface
Answer: A,D
NEW QUESTION 195
The IP address 203.108.2.110 is the ______ address.
- A. Class D
- B. Type C
- C. Type B
- D. Type A
Answer: B
NEW QUESTION 196
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. 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.
- B. The default firewall rule is to allow
- C. The ACL is applied in the wrong direction
- D. The ACL does not take effect
Answer: B
NEW QUESTION 197
The following description about routing is correct ______. (Multiple choice)
- A. IGP is a routing protocol based on D-V algorithm
- B. Route convergence means that the routes of the routers in the entire network are consistent
- C. A complete route must include at least mask, destination address, and next hop
- D. The priority of the direct route cannot be modified manually
Answer: B,C,D
NEW QUESTION 198
The routing table seen on an MSR router is as follows:
Destination/Mask Proto Pre Cost NextHop Interface
6.6.6.0/24 Static 60 0 100.1.1.1 GE0/0
8.8.8.8/32 Direct 0 0 127.0.0.1 InLoop0
20.1.1.0/24 Static 60 0 100.1.1.1 GE0/0
30.0.0.0/8 RIP 100 1 100.1.1.1 GE0/0
Then the correct analysis of this routing table is ______.
- A. The routing table is not the complete routing table of the router, and the complete routing table should have at least the direct network segment route of interface GE0/0
- B. The router is running RIPv1 because the mask of the destination network segment 30.0.0.0 is a natural mask
- C. The next hop interface of the route whose destination network segment is 8.8.8.8/32 is InLoop0, indicating that the next hop of the route is a virtual interface similar to Null0, and the route is a black hole route
- D. The IP address of GE0/0 on the router is 100.1.1.1
Answer: A
NEW QUESTION 199
I see the following information on an MSR router running RIP:
<MSR>display rip
Public VPN-instance name:
RIP process: 1
RIP version: 2
Preference: 100
Checkzero: Enabled
Default-cost: 0
Summary: Enabled
Hostroutes: Enabled
Maximum number of balanced paths: 8
Then from the displayed information, ______ can be analyzed.
- A. The router is running RIPv2
- B. The automatic aggregation function of RIP is enabled
- C. Support 8 routes to achieve load sharing
- D. The cost of the RIP route sent or received by this router is 0
Answer: A,B,C
NEW QUESTION 200
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. Root DNS
- B. Authorized domain name server
- C. local domain name server
- D. Primary domain name server
Answer: B
NEW QUESTION 201
Which part of the subnet division technology is implemented on the basis of the natural classification of IP address division?
- A. Network number part
- B. host number part
- C. Subnet number part
- D. prefix part
Answer: C
NEW QUESTION 202
The equipment that should be used in the box in the figure is ______.
- A. Router
- B. WAN switch
- C. Modem
- D. CSU/DSU
Answer: A
NEW QUESTION 203
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 204
The characteristics of MSTP are ______. (Multiple choice)
- A. None of the above statements are correct
- B. MSTP is compatible with STP and RSTP.
- C. MSTP trims the loop network into a loop-free tree network, avoiding the proliferation and infinite loops of messages in the loop network, and at the same time, it can also provide a redundant path for data forwarding, which is implemented in the data forwarding process. Load balancing of VLAN data.
- D. MSTP divides a switching network into multiple domains, each of which forms multiple spanning trees, and the spanning trees are independent of each other.
Answer: B,C,D
NEW QUESTION 205
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. These three routes can be replaced by one route ip route-static 192.168.0.0 255.255.252.0 3.3.3.2
- C. Only the first route will be written into the routing table of MSR-1
- D. All three routes will be written into the routing table of MSR-1
Answer: B,D
NEW QUESTION 206
Two MSR routers MSR-1 and MSR-2 are connected through the WAN and dynamically complete remote route learning through RIPv2.
After stable for 2 minutes, the RIP update message from MSR-2 is received on MSR-1, which contains the route with Cost of 14, then ______. (Multiple choice)
- A. If the routing table of MSR-1 originally has the route, the routing entry will only be updated when its Cost is greater than 14.
- B. If the MSR-1 routing table originally contains the same route received from the neighbor, and its Cost is less than 14, the route will also be updated
- C. If the routing table of MSR-1 originally has the route, and its Cost is less than 14, then the routing entry on MSR-1 will not be updated
- D. If there is no such route in the routing table of MSR-1, then the route will be added to the routing table of MSR-1
Answer: B,D
NEW QUESTION 207
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-1: [MSR-1-ospf-1]ospf dr-priority 255
- C. Configure on MSR-2: [MSR-1-ospf-1]ospf dr-priority 0
- D. Configure on MSR-1: [MSR-1-GigabitEthernet0/0]ospf dr-priority 255
Answer: A,D
NEW QUESTION 208
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