H35-210-ENU

MAC address is composed of 48 bit, usually showed in 12 hexadecimal, the first six hexadecimal digits by the IEEE in charge of unified distribution, used to determine the uniqueness of the manufacturers, the last six hexadecimal digits by the manufacturers responsible for their own management.A . TrueB . FalseView...

MAC address is usually purchased by each manufacturer from IEEE, but can also be specified on their own.A . TrueB . FalseView AnswerAnswer: B

TTL is mainly to prevent IP packet loop forwarding in the network, wasting network bandwidth.A . TrueB . FalseView AnswerAnswer: A

Which of the following does not belong to the scope of the communication network?A . Telephone NetworkB . Internet NetworkC . Radio and Television NetworkD . National GridView AnswerAnswer: D

Relationship of ADSL transmission rate and transmission distance is: the farther distance, the greater the attenuation, transmission rate is lower and transmission distance and attenuation is a non-linear relationship.A . TrueB . FalseView AnswerAnswer: A

Which is the next generation development prospect of access network ?A . to expand application of PSTNB . increase transmission business types on the ADSLC . Light into the copperD . improve ADSL transmission distance, increase coverage radiusView AnswerAnswer: C

In 802.1Q tag header, how many bit domain is VLAN ID? and how many VLAN can indicate in total?A . 4;16B . 8;256C . 10;1024D . 12;4096View AnswerAnswer: D

ATM goal, namely the biggest feature of ATM is that any form of business distribution can achieve the best utilization of network resources. To achieve this goal will be to statistical multiplexing network resources.A . TrueB . FalseView AnswerAnswer: A

Fast Ethernet standard rate has 100Base-TX, 100Base-T4 and 100Base-FX.A . TrueB . FalseView AnswerAnswer: A

ICMP is a link layer protocol, ICMP message is triggered by the physical layer, and then respond by IP layer or a higher layer protocol.A . TrueB . FalseView AnswerAnswer: B