[Q118-Q139] Full GB0-191-ENU Practice Test and 434 unique questions with explanations waiting just for you!

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Full GB0-191-ENU Practice Test and 434 unique questions with explanations waiting just for you!

H3CNE Dumps GB0-191-ENU Exam for Full Questions – Exam Study Guide

Q118. 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)

These four routes will be written into the routing table of MSR-1

Only the fourth route will be written into the routing table of MSR-1

These four routes can be replaced by one route ip route-static 192.168.1.0 255.255.252.0 3.3.3.2

Only the first route will be written into the routing table of MSR-1

Q119. Execute the following configuration commands on the router:
[Router] dhcp enable
[Router] server forbidden-ip 192.168.1.10
[Router] server forbidden-ip 192.168.1.254
[Router] dhcp server ip-pool 0
[Router-dhcp-pool-0] network 192.168.1.0 mask 255.255.255.0
[Router-dhcp-pool-0] gateway-list 192.168.1.254
[Router-dhcp-pool-0] dns-list 192.168.1.10
[Router-dhcp-pool-0] expired day 5
After completing the above configuration, which of the following statements are correct? (multiple choice)

The router has a DHCP relay function

There are 252 addresses that the router can assign to the host

The router has a DHCP server function

The host can obtain the DNS server address 192.168.1.10 from the router through the DHCP service

Q120. 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

Q121. An MSR router is connected to the Internet through the S1/0 interface, and the GE0/0 interface is connected to the LAN host. The network segment of the LAN host is 10.0.0.0/8, and there is an FTP server with an IP address of 202.102.2.1 on the Internet.
By configuring the IP address and routing on the router, the hosts in the current LAN can access the Internet normally (including the public network FTP server). Now the following configuration is added to the router:
firewall enable
acl number 3000
rule 0 deny tcp source 10.1.1.1 0 source-port eq ftp destination 202.102.2.1 0
Then apply this ACL to the inbound and outbound directions of the GE0/0 interface, then which of the following intentions can this ACL achieve?

The host whose source address is 10.1.1.1 is prohibited from initiating FTP connection to the destination host 202.102.2.1

Only prohibit the FTP control connection from the host whose source address is 10.1.1.1 to the destination host’s 202.102.2.1 whose port is TCP 21

Only prohibit the FTP data connection from the host whose source address is 10.1.1.1 to the destination host 202.102.2.1 whose port is TCP 20

There is no restriction on the FTP connection initiated from 10.1.1.1 to 202.102.2.1

Q122. 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 ______.

unicast

broadcast

multicast

anycast

Q123. In the OSI reference model, the function of the network layer is mainly ______.

Transmit the original bit stream on the channel

Make sure that each piece of information that reaches the other party is correct

Determine how the data packet is routed from the source to the destination

Strengthen the function of the original bit stream of the physical layer data transmission, and carry out flow control

Q124. The following description about the characteristics of Comware, which is correct is ______.

Support IPv4 and IPv6 dual protocol

Support multiple CPUs

Integration of routing and switching functions

High reliability and flexible expansion

Flexible cutting and customization functions

Q125. 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-4B-C1 from the E1/0/2 interface, the switch will ______ the frame.

Send out from the E1/0/1 interface

Send out from the E1/0/2 interface

Send out from the E1/0/3 interface

send out from E1/0/4 interface

send out from all interfaces on the switch

Discard directly

Q126. 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.

The router is running RIPv2

The automatic aggregation function of RIP is enabled

The cost of the RIP route sent or received by this router is 0

Support 8 routes to achieve load sharing

Q127. The two WAN interfaces S1/0 and S1/1 of the router MSR-1 are connected to the routers MSR-2 and MSR-3 respectively. At the same time, the Ethernet port of MSR-1 is connected to MSR-4, and all four routers run RIP protocol.
After the network 192.168.0.0 on MSR-1 fails, MSR-1 immediately sends the update message that the route is unreachable to the other three routers. If the suppression time is not considered, then ______. (Multiple choice)

RIP’s fast convergence mechanism is used on MSR-1

The trigger update mechanism of RIP is used on MSR-1

If MSR-1 has not had time to send the update information about this route, and it receives periodic route update information from neighboring routers, then the wrong routing information will be updated on MSR-1

This method of sending update messages immediately cannot completely avoid routing loops when used alone

Q128. On the MSR router, if you want to view the number of packets translated by NAT, you should use the ______ command.

display nat counter

display nat

display acl

display nat session

Q129. 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)

The type of aggregation group is static aggregation

The type of aggregation group is dynamic aggregation

The aggregation group contains 3 active ports

There is no active port in the aggregation group

Q130. The following devices working at the data link layer of the OSI reference model are ______.

WAN switch

Router

Repeater

Hub

Q131. When configuring ISDN DCC, the customer configured the following dialer-rule on his MSR router:
[MSR] dialer-rule 1 acl 3000
Which of the following statements about this configuration are correct? (multiple choice)

Only packets matching ACL 3000 can trigger dialing

Only data packets matching ACL 3000 will be sent by the router through the dial-up link

No permit or deny is defined, configuration error

The correct configuration should be: [MSR] dialer-rule 1 acl 3000 permit

Q132. During the establishment of the TCP connection as shown in the figure, the X part of the SYN should be filled with ________.

a+1

b+1

Q133. An MSR router is connected to the Internet through the WAN interface, and the following interface display information is seen on the MSR router:
Mp-group1 current state: UP
Line protocol current state: UP
Description: Mp-group1 Interface
The Maximum Transmit Unit is 1500, Hold timer is 10(sec)
Internet Address is 172.16.1.100/24 Primary
Link layer protocol is PPP
LCP opened, MP opened, IPCP opened
Physical is MP, baudrate: 64000 bps
Then the correct analysis of the information displayed above is _____. (Multiple choice question)

The physical cable used by this interface is an MP cable

The link layer protocol encapsulated by the interface is PPP

The interface Mp-group1 contains at least two physical interfaces

The network layer protocol running on the interface is IP

Q134. Which of the following statements about IP addresses are correct is ______. (Multiple choice)

The first byte of class A address is 0~126 (127 is reserved for other use)

The IP address with all zeros in the host number is called the network address, which is used to identify all hosts in a network.

IP address is usually expressed in dotted decimal notation, for example: 10.110.168.121

IP address consists of two parts: network number and host number

Q135. Ping is actually an application developed based on the ______ protocol.

ICMP

TCP

UDP

Q136. Which of the following statements about optical fiber are correct? (multiple choice)

Multimode fiber can transmit light of different wavelengths and different incident angles

The cost of multimode fiber is lower than that of single mode fiber

When using multi-mode fiber, the maximum signal transmission distance is longer than single-mode fiber

Multimode fiber has a thinner core

Q137. Two empty-configured MSR routers are interconnected back-to-back through their respective GE0/0 interfaces, and their interconnection network segment is 192.168.1.0/30. After the IP addresses are correctly configured, the GE0/0 interfaces of the two routers can communicate with each other. Now the following OSPF configurations are added to the two routers:
ospf 1
area 0.0.0.1
network 192.168.1.0 0.0.0.3
So which of the following statements are correct?

No Router ID is configured, and a stable OSPF adjacency relationship cannot be established between the two routers

Area 0 is not configured, and a stable OSPF adjacency relationship cannot be established between the two routers

An OSPF route will appear in the RTA routing table

A stable OSPF adjacency relationship can be established between the two routers, but there is no OSPF route in the routing tables of RTA and RTB

Q138. Which of the following descriptions about the access ports and links of S series Ethernet switches is correct is ______. (Multiple choice)

The access port can belong to multiple VLANs at the same time

The access link can only carry data frames without VLAN ID

The access link can only carry data frames with VLAN ID

When the access port receives a data frame without a VLAN ID, the PVID value of the port is added as the VLAN ID of the data frame

Q139. The subnet mask of the IP address 132.119.100.200 is 255.255.255.224, so the broadcast address of the subnet where it is located is ______.

132.119.100.255

132.119.100.225