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H3C GB0-191-ENU Exam Syllabus Topics:

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

1. The two routers RTA and RTB are interconnected back-to-back using serial ports. The serial port of RTA is configured with HDLC protocol, and the serial port of RTB is configured with PPP protocol.
Both devices are configured with the correct IP address, then what will happen is ______. (Multiple choice)

A) RTA serial port physical layer down, protocol layer down
B) The physical and protocol layers of RTA and RTB serial ports are both down
C) RTB serial port physical layer up, protocol layer down
D) The physical layer of the RTB serial port is down, and the protocol layer is down.
E) The physical layer of the RTA serial port is up, and the protocol layer remains up, but RTA cannot ping RTB

2. 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) There is no restriction on the FTP connection initiated from 10.1.1.1 to 202.102.2.1
B) 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
C) The host whose source address is 10.1.1.1 is prohibited from initiating FTP connection to the destination host 202.102.2.1
D) 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

3. The XYZ company network is shown in the figure.

There is no logical interface configured on the Router; all hosts can communicate normally. Then there are ___ conflict domains in this network. (Please fill in Arabic numerals)

4. 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) local domain name server
B) Primary domain name server
C) Authorized domain name server
D) Root DNS

5. After RIP learns a route from an interface, it sets the metric of the route to infinity (16) and sends it back to the neighbor router from the original interface. This method of avoiding loops is ______.

A) Triggered Update
B) Route Poisoning
C) Poison Reverse
D) Split Horizon

Solutions: