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H3C GB0-191-ENU Exam Syllabus Topics:

H3C Constructing Small - and Medium - Sized Enterprise Network Sample Questions:

1. The correct statement below is ______. (Multiple choice)

A) 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
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) 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

2. Which of the following statements about MAC addresses are wrong? (multiple choice)

A) Usually only terminal hosts need MAC addresses, routers and other network devices do not need
B) Ethernet uses MAC address to identify host
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

3. Different priority levels can be configured for Telnet users on the MSR router. What is wrong about this priority level is ______. (Multiple choice)

A) 0 is the access level
B) 2 is device level
C) The smaller the value, the lower the user's priority
D) 3 is management level
E) 1 is the monitoring level
F) The smaller the value, the higher the user's priority

4. 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 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
B) 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.
C) 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
D) 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

5. 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)

A) The IP address of interface GE0/0 of MSR-1 cannot be pinged on HostA
B) Cannot ping HostA on MSR-1
C) On HostA, you can ping the IP address of MSR-1 interface GE0/0
D) HostA can be pinged on MSR-1

Solutions: