[Q237-Q255] Certification Training for GB0-191-ENU Exam Dumps Test Engine [2026]

QUESTION 237
On the MSR router, if you want to view the number of packets translated by NAT, you should use the ______ command.

QUESTION 238
Compared with traditional LAN, which of the following advantages does VLAN have? (multiple choice)

QUESTION 239
In the OSI reference model, the function of the network layer is mainly ______.

QUESTION 240
The functions implemented by the IPv6 Neighbor Discovery Protocol include _____. (Multiple choice)

QUESTION 241
The rate of the D channel in ISDN PRI is ______.

QUESTION 242
Methods of VLAN division include ______. (Multiple choice question)

QUESTION 243
After turning on the debugging, you can use the ______ command to turn off the debugging.

QUESTION 244
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)

QUESTION 245
The MAC address table on a layer 2 switch is shown in the figure.

When the switch receives a broadcast frame from the E1/0/1 interface, it will ______ the frame. (Multiple choice)

QUESTION 246
Which of the following options describes the parameters that can uniquely determine a TCP connection?

QUESTION 247
On the MSR router, use the ______ command to view the router’s NAT aging time.

QUESTION 248
After the DHCP client receives the DHCP ACK message, if it finds that the IP address it will use already exists on the network, what message will it send to the DHCP server?

QUESTION 249
A network connection is like:
HostA—-GE0/0–MSR-1–S1/0———S1/0–MSR-2–GE0/0—-HostB
Two of the 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. By configuring the IP address and routing, HostA can communicate with HostB in the current network. The IP address of HostA is 192.168.0.2/24, and the default gateway is 192.168.0.1. The GE0/0 interface address of MSR-1 is 192.168.0.1/24.
The following configuration has been added to MSR-1:
firewall enable
firewall default permit
acl number 3003
rule 0 deny icmp source 192.168.0.2 0 icmp-type echo-reply
interface GigabitEthernet0/0
firewall packet-filter 3003 inbound
So ______ . (Multiple choice)

QUESTION 250
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, and S1/0 of MSR-2 needs to negotiate an IP address from the opposite MSR-1 instead of manually configuring a static IP address.
Then the S1/0 interface of the two routers can run ______. (Multiple choice)

QUESTION 251
The two routers MSR-1 and MSR-2 are interconnected through the S0/0 interface, and the two routers learn the routes of the LAN segment by running the RIP protocol.
See the following configuration commands on MSR-1:
[MSR-1-Serial0/0] rip authentication-mode md5 rfc2453 H3C
Then the correct interpretation of this command is ______. (Multiple choice)

QUESTION 252
A network connection is as follows:
HostA—-GE0/0–MSR-1–S1/0———S1/0–MSR-2–GE0/0—-HostB
The customer requires that only ICMP messages between HostA and HostB are restricted. Which of the following is feasible? (multiple choice)

QUESTION 253
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)

QUESTION 254
Which of the following messages are used in IPv6 address resolution? (multiple choice)

QUESTION 255
After executing the display stp command on the switch SWA, the switch output is as follows: [
SWA]display stp
——-[CIST Global Info][Mode MSTP]——-
CIST Bridge: 32768.000f-e23e-f9b0
Bridge Times :Hello 2s MaxAge 20s FwDly 15s MaxHop 20
It can be judged from the above output ______.