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Exam Questions for GB0-191-ENU Updated Versions With Test Engine
NEW QUESTION 184
Which of the following statements about MAC addresses are correct? (multiple choice)
- A. Ethernet uses MAC address to identify host
- B. Usually only terminal hosts need MAC addresses, routers and other network devices do not need
- C. The MAC address is solidified in ROM and cannot be changed under normal circumstances
- D. MAC address is a logical address that is easy to change
Answer: A,C
NEW QUESTION 185
According to the different ways the switch processes VLAN data frames, the port types of H3C Ethernet switches are divided into ______. (Multiple choice)
- A. hybrid port
- B. Mirror port
- C. access port
- D. trunk port
- E. monitor port
Answer: A,C,D
NEW QUESTION 186
The correct configuration command to enable DHCP service on the router is ______.
- A. [Router-dhcp-pool-0] dhcp
- B. [Router] dhcp enable
- C. [Router] dhcp
- D. [Router-dhcp-pool-0] dhcp enable
Answer: B
NEW QUESTION 187
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 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 command ping 20.1.1.1 was executed on the router with IP address 3.3.3.2
Answer: B,C,D
NEW QUESTION 188
The rate of the D channel in ISDN PRI is ______.
- A. 16 Kbps
- B. 64 Kbps
- C. 54 Kbps
- D. 36 Kbps
Answer: A
NEW QUESTION 189
Two empty-configured MSR routers MSR-1 and MSR-2 are interconnected back-to-back through their S1/0 interfaces, and their GE0/0 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
The versions of the two MSR routers are unified to Version 5.20, Release 1618P11, and the following configurations are made on the two routers:
Configuration on MSR-1:
[MSR-1]interface GigabitEthernet 0/0
[MSR-1-GigabitEthernet0/0] ip address 192.168.1.1 255.255.255.0
[MSR-1]interface Serial 1/0
[MSR-1-Serial1/0] link-protocol ppp
[MSR-1-Serial1/0]ip address 3.3.3.1 255.255.255.252
[MSR-1]rip
[MSR-1-rip-1]network 192.168.1.0
[MSR-1-rip-1]network 3.3.3.1
Configuration on MSR-2:
[MSR-2]interface GigabitEthernet 0/0
[MSR-2-GigabitEthernet0/0] ip address 10.10.10.1 255.255.255.0
[MSR-2]interface Serial 1/0
[MSR-2-Serial1/0] link-protocol ppp
[MSR-2-Serial1/0]ip address 3.3.3.2 255.255.255.252
[MSR-2]rip
[MSR-2-rip-1]network 10.10.10.0
[MSR-2-rip-1] network 3.3.3.1
According to the above configuration, the WAN interface between the two routers can communicate with each other, and the two hosts HostA and HostB can ping the address of their respective gateway GE0/0. Then which of the following statements is correct?
- A. Two routers cannot learn each other's GE0/0 network segment route through RIP
- B. RIPv1 is running between the two routers
- C. The two routers can learn the routes of each other's GE0/0 network segment through RIP
- D. RIPv2 is running between the two routers
Answer: B,C
NEW QUESTION 190
The subnet mask of the IP address 132.119.100.200 is 255.255.255.240, so the IP subnet address where it is located is ______.
- A. 132.119.100.193
- B. 132.119.100.0
- C. 132.119.100.192
- D. 132.119.100.128
Answer: C
NEW QUESTION 191
In the LCP negotiation phase, what content will PPP negotiate? (multiple choice)
- A. Maximum transmission unit
- B. Link layer encapsulation protocol type
- C. Verification method
- D. Network layer protocol type
Answer: A,C
NEW QUESTION 192
Both VLAN technology and port isolation technology can achieve Layer 2 isolation of data.
- A. correct
- B. error
Answer: A
NEW QUESTION 193
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-4E-C4 from the E1/0/2 interface, the switch will ______ the frame. (Multiple choice)
- A. Discard directly
- B. Send out from the E1/0/3 interface
- C. Send out from the E1/0/2 interface
- D. send out from all interfaces on the switch
- E. Send out from the E1/0/1 interface
- F. send out from E1/0/4 interface
Answer: B,E,F
NEW QUESTION 194
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 Reply
- B. Port-Unreachable
- C. Echo Request
- D. TTL-Exceeded
Answer: A
NEW QUESTION 195
Ping is actually an application developed based on the ______ protocol.
- A. ICMP
- B. IP
- C. TCP
- D. UDP
Answer: A
NEW QUESTION 196
A PC is connected to the port E1/0/1 of the switch SWA. If you want the switch to perform local authentication on the PC through the 802.1X protocol, which commands need to be configured on the switch? (multiple choice)
- A. [SWA]local-user localuser
- B. [SWA]dot1x
- C. [SWA]dot1x interface ethernet1/0/1
- D. [SWA-luser-localuser]password simple hello
- E. [SWA-luser-localuser]service-type lan-access
Answer: A,B,C,D,E
NEW QUESTION 197
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. 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
- B. nat server protocol icmp global 192.168.1.1 inside 2.2.2.1
- C. nat server protocol icmp global 2.2.2.1 inside 192.168.1.1
- D. 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
Answer: C
NEW QUESTION 198
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. This command makes all interfaces of MSR-1 only send routing updates and not accept routing updates
- B. After configuring this command, the RIP route in the MSR-2 routing table disappears immediately
- C. This command makes all interfaces of MSR-1 only receive routing updates without sending routing updates
- D. After configuring this command, the RIP route in the MSR-1 routing table disappears immediately
Answer: C
NEW QUESTION 199
The customer's network connection looks like:
HostA----GE0/0--MSR-1--S1/0-----WAN----S1/0--MSR-2--GE0/0----HostB
The customer's WAN network only supports synchronization, so the S1/0 interface of the two routers can run ______. (Multiple choice)
- A. HDLC+RIP
- B. PPP+RIP
- C. PPP+OSPF
- D. HDLC+OSPF
Answer: A,B,C,D
NEW QUESTION 200
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