May-2023 Free GB0-191-ENU Test Questions Real Practice Test Questions
GB0-191-ENU Dumps Updated May 07, 2023 WIith 434 Questions
NEW QUESTION # 196
Which of the following advantages does the OSI reference model have? (multiple choice)
- A. 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.
- B. The OSI reference model provides compatibility and standard interfaces between devices and promotes standardization.
- C. 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.
- D. None of the above statements are correct.
Answer: A,B
NEW QUESTION # 197
On the MSR router, use the ______ command to view the current running version of the device.
- A. display version
- B. display current-version
- C. display software
- D. display running
Answer: A
NEW QUESTION # 198
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. Authorized domain name server
- B. local domain name server
- C. Root DNS
- D. Primary domain name server
Answer: A
NEW QUESTION # 199
Which of the following statements about Ethernet is correct is ________. (Multiple choice)
- A. Ethernet transmission distance is short, the longest transmission distance is 500m
- B. None of the above statements are correct
- C. Ethernet is a network based on shared media
- D. Ethernet adopts CSMA/CD mechanism
Answer: C,D
NEW QUESTION # 200
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. HDLC+OSPF
- D. PPP+OSPF
Answer: A,B,C,D
NEW QUESTION # 201
On the MSR router, if a certain file has been set as the startup file, you can use the ______ command to check whether the setting is correct.
- A. display start-configuration
- B. display begin
- C. display startup
- D. display boot
Answer: C
NEW QUESTION # 202
The messages exchanged between the DHCP relay and the DHCP server use ______.
- A. unicast
- B. broadcast
- C. multicast
- D. anycast
Answer: A
NEW QUESTION # 203
A Layer 3 switch is connected to the GigabitEthernet0/0 interface of the customer's router MSR-1, and this Layer 3 switch is the default gateway for multiple segments of the customer's office network. At the same time, the WAN interface of the router is connected to the Internet, and there is a DNS server on the Internet to provide services for hosts in the customer's local area network. The customer's office network can access the Internet normally. Now the following ACL is applied in the inbound direction of GigabitEthernet0/0 of MSR-1 :
firewall enable
acl number 3006
rule 0 deny tcp source 192.168.1.0 0.0.0.255
rule 5 permit ip
So ______ . (Multiple choice)
- A. Customers on the 192.168.1.0/24 network segment cannot send and receive external mail through mail clients such as Outlook
- B. Customers on the 192.168.0.0/24 network segment can download data from the Internet via FTP
- C. Customers on the 192.168.1.0/24 network segment can send and receive external mail normally through mail clients such as Outlook
- D. Customers on the 192.168.1.0/24 network segment cannot open external web pages through WWW
Answer: A,B,D
NEW QUESTION # 204
The following routing information is seen on the MSR router running RIP:
<MSR>display ip routing-table 6.6.6.6
Routing Table: Public
Summary Count: 2
Destination/Mask Proto Pre Cost NextHop Interface
6.0.0.0/8 RIP 100 1 100.1.1.1 GE0/0
6.6.6.0/24 Static 60 0 100.1.1.1 GE0/0
At this time, the router receives a data packet with a destination address of 6.6.6.6, then ______.
- A. The packet will first match the static route in the routing table because of its high priority
- B. The packet will preferentially match the static route in the routing table because its metric value is the smallest
- C. The packet will preferentially match the static route in the routing table because it has the longest mask
- D. The packet will first match the RIP route in the routing table because its mask is the shortest
Answer: C
NEW QUESTION # 205
If all 0s and all 1s subnets can be used as effective subnets, the class C address 192.168.1.0 is subnetted with a 27-bit subnet mask, and the number of effective subnets that can be divided is ______.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 206
The correct statement below is ______. (Multiple choice)
- A. In RSTP mode, each port of the device will send out RSTP BPDU packets. When it is found to be connected to an STP device, the port will automatically migrate to work in STP compatibility mode
- B. MSTP and RSTP can identify each other's protocol packets and are compatible with each other
- C. In MSTP mode, each port of the device will send out MSTP BPDU packets. When a port is found to be connected to an STP device, the port will automatically migrate to work in STP compatibility mode
- D. In STP compatibility mode, each port of the device will send out STP BPDU packets
Answer: A,B,C,D
NEW QUESTION # 207
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?
- A. 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
- B. The host whose source address is 10.1.1.1 is prohibited from initiating FTP connection to the destination host 202.102.2.1
- C. There is no restriction on the FTP connection initiated from 10.1.1.1 to 202.102.2.1
- D. 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
Answer: C
NEW QUESTION # 208
The equipment that realizes network interconnection at the network layer is ______.
- A. Switch
- B. Hub
- C. Repeater
- D. Router
Answer: D
NEW QUESTION # 209
The equipment that should be used in the box in the figure is ______.
- A. Modem
- B. CSU/DSU
- C. Router
- D. WAN switch
Answer: C
NEW QUESTION # 210
Divide a class B network segment into subnets. If the subnet mask is 19 bits, the maximum number of subnets that can be divided is ___. (Please fill in Arabic numerals)
Answer:
Explanation:
8
NEW QUESTION # 211
The MSR router exchanges routing information with the outside world through RIPv2. There are three routes 10.1.1.0/24, 10.1.2.0/24, 10.1.3.0/24 in the routing table, then the following RIP configuration is added to the router:
[MSR-rip-1] summary
Then the router will send out the route of which network segment as follows?
- A. 10.1.0.0/22
- B. 10.0.0.0/8
- C. 10.1.0.0/16
- D. 10.1.2.0/22
Answer: B
NEW QUESTION # 212
On the MSR router, if you want to view the number of packets translated by NAT, you should use the ______ command.
- A. display nat counter
- B. display acl
- C. display nat
- D. display nat session
Answer: B
NEW QUESTION # 213
There are many kinds of WAN interfaces. Which of the following descriptions of WAN interfaces is correct is ______. (Multiple choice)
- A. BRI/PRI interface is used for ISDN access, the default link encapsulation is PPP
- B. The G.703 interface provides high-speed data synchronous communication services.
- C. The V.24 protocol interface can work in both synchronous and asynchronous modes. In the asynchronous mode, the link layer uses PPP encapsulation.
- D. The V.35 protocol interface can work in both synchronous and asynchronous modes. In the asynchronous mode, the link layer uses PPP encapsulation.
Answer: A,B,C
NEW QUESTION # 214
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,B,E
NEW QUESTION # 215
The correct statement below is ______. (Multiple choice)
- A. CSU (Channel Service Unit): A digital interface device that connects end users with the local digital telephone loop. Usually it and DSU are collectively referred to as CSU/DSU. CSU equipment includes computers, protocol translators, and demultiplexers. DTE equipment includes these
- B. DCE (Data Circuit Terminating Equipment, data communication equipment or data circuit terminal equipment) equipment and its connection with the communication network constitute the user network interface of the network terminal. It provides a physical connection to the network for forwarding traffic, and provides a clock signal for synchronizing data transmission between DCE equipment and DTE equipment.
- C. DSU (Data Service Unit): refers to a device used in digital transmission, which can adapt the physical layer interface on the DTE device to communication facilities such as T1 or E1. The data service unit is also responsible for signal timing and other functions. It is usually mentioned together with CSU and is called CSU/DSU.
- D. DTE (Data Terminal Equipment, data terminal equipment) equipment refers to the equipment located at the user end of the user network interface, it can be used as a source, a sink, or both at the same time. Data terminal equipment is connected to a data network through a data communication device (for example, a modem), and usually uses a clock signal generated by the data communication device. Modems and interface cards are examples of DTE devices. Is an example of a DCE device
Answer: B,C
NEW QUESTION # 216
The customer router connects to the operator's network through the S1/0 interface. The S1/0 interface uses the default configuration.
The following route is configured on the router: [MSR]ip route-static 0.0.0.0 0.0.0.0 Serial1/0
However, when viewing the routing table through display ip routing-table, it is found that the route is not displayed in the routing table. Based on this, it is speculated that the possible reason is ______. (Multiple choice)
- A. S1/0 interface is shutdown
- B. The configuration is wrong, you should exit to the system view to configure the route to take effect
- C. The configuration is wrong, the next hop of the route should enter the IP address of the opposite end instead of the interface name S1/0
- D. S1/0 interface has no IP address
Answer: A,D
NEW QUESTION # 217
A network connection is like:
HostA----GE0/0--MSR-1--S1/0---------S1/0--MSR-2--GE0/0----HostB
Two 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. The IP address of HostA is 192.168.0.2/24, and the address of the S0/0 interface of MSR-2 is 1.1.1.2/30. By configuring other relevant IP addresses and routes, HostA can communicate with HostB in the current network.
Nowadays, the customer requires that HostA is not allowed to log in to the MSR-2 through Telnet at address 1.1.1.2.
So which of the following configurations can meet this requirement? (multiple choice)
- A. Configure the following ACL on MSR-1 and apply it to the inbound direction of S1/0 of MSR-1: [MSR-1]firewall enable [MSR-1]acl number 3000 [MSR-1-acl- adv-3000]rule 0 deny tcp source 192.168.0.1 0.0.0.255 destination 1.1.1.2 0 destination-port eq telnet
- B. Configure the following ACL on MSR-1 and apply it to the outbound direction of GE0/0 of MSR-1: [MSR-1]firewall enable [MSR-1]acl number 3000 [MSR-1-acl- adv-3000]rule 0 deny tcp source 192.168.0.2 0 destination 1.1.1.2 0 destination-port eq telnet
- C. Configure the following ACL on MSR-1 and apply it to the outbound direction of S1/0 of MSR-1: [MSR-1]firewall enable [MSR-1]acl number 3000 [MSR-1-acl- adv-3000]rule 0 deny tcp source 192.168.0.2 0 destination 1.1.1.2 0.0.0.3 destination-port eq telnet
- D. Configure the following ACL on MSR-1 and apply it to the inbound direction of GE0/0 of MSR-1: [MSR-1]firewall enable [MSR-1]acl number 3000 [MSR-1-acl-adv -3000]rule 0 deny tcp source 192.168.0.1 0.0.0.255 destination 1.1.1.2 0.0.0.3 destination-port eq telnet
Answer: C,D
NEW QUESTION # 218
......
View All GB0-191-ENU Actual Free Exam Questions Updated: https://www.dumpstorrent.com/GB0-191-ENU-exam-dumps-torrent.html
Pass Authentic H3C GB0-191-ENU with Free Practice Tests and Exam Dumps: https://drive.google.com/open?id=1Ih6FOH_iS8O4082zoQf55jGAGxsNtvqn