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Q241.  (Topic 1) 

: 86 

ADSL is a broadband access technology, the following () method refers to broadband ADSL. 

A. Super Smart Call 

B. residential broadband 

C. Network Express 

D. wired through 

Answer: A,C 

Q242.  (Topic 3) 

Judge: from a non-root bridge to reach the root bridge of a number of possible paths, each path has a total cost value; this value is the path cost of all the ports of port cost sum. 

A. True 

B. False 


Q243.  (Topic 3) 

In order to ensure that all hosts belong to the same VLAN can receive broadcast destined for this VLAN packets, the switch must forward operation which follows 

A. The switch from the packet sent to all ports 

B. transmits the packet to the switch with the other ports in a VLAN 

C. transmits the packet to the switch allows all of the VLAN trunk link through 

D. transfer packets from the switch to send out all the roads link 

Answer: B,C 

Q244.  (Topic 2) 

: 207 

Which of the following procedures will be used ICMP protocol? 

A. ping 

B. tracert 

C. igmp 

D. arp 

Answer: A,B,D 

Q245.  (Topic 1) 

: 56 

Funded by the U.S. Department of Defense established a called ARPANET (the ARPANET is) based on () network, ARPANET was the first prototype of today's Internet. 

A. Low-speed serial connection 

B. Circuit Switched 

C. Packet switching 

D. MPLS forwarding 


154.  (Topic 1) 

V.35 synchronous mode the maximum transmission rate is 

A. 64Kbps 

B. 9200bps 

C. 56kbps 

D. 2048kbps 


Explanation: QUESTION NO: 15 VLSM is the meaning of 

A. Variable Length Subnet Masking 

B. Variable Length Shortest Masking 

C. Very Long / Shortest Masking 

D. Variable Long Subnet Masking 


Q246.  (Topic 1) 

: 141 

The data link layer () is responsible for identifying the protocol type and data package, and has a PDU sequence control, error control, flow control and other functions. 

A. PVC sublayer 

B. MAC sublayer 

C. LLC sublayer 

D. VC sublayer 


Q247.  (Topic 1) 

Is the physical layer transmission 

A. Frame 

B. Package 

C. Section 

D. binary bit stream 


Q248.  (Topic 4) 

Changes in network topology, the () will not automatically change, must have a network administrator intervention. 

A. ISIS routing 

B. OSPF routing 

C. BGP routing 

D. Static routes 


Q249.  (Topic 4) 

Frame Relay congestion avoidance can be achieved is determined by which of several header fields to achieve 




D. DE 


Answer: A,B,D 

Q250.  (Topic 2) 

In which of the following cases, the data packets based on source and destination IP address is to determine the host address 

A. Radio (Broadcast) 

B. Multicast (Multicast) 

C. unicast (Unicast) 

D. Live (Dircast) 


Q251.  (Topic 3) 

The following statement on the VRRP Priority right in is: 

A. No matter how much the configuration of the Priority, the virtual IP address of the owner to always use 255 as a Priority 

B. Priority no matter how much the configuration of the virtual IP address of the owner always use 0 as a Priority 

C. You can configure VRRP router to a table the way Priority 0 so that the Master VRRP router does not participate in the election, so that the router is always a Slave 

D. When the Master VRRP VRRP router to stop running when the network will send a Priority 0 VRRP advertisement messages 

Answer: A,D 

Q252.  (Topic 3) 

As opposed to traditional LAN technology, VLAN has the following advantages: 

A. Reducing the cost of moving and changing 

B. separate broadcast domains, inhibit the broadcast message 

C. Strengthening the security of communications 

D. enhancing network robustness 

Answer: A,B,C,D 

Q253.  (Topic 3) 

HDLC frame not included in the monitoring of which field (). 

A. Address Field (A) 

B. Control field (C) 

C. Information Field (I) 

D. Frame Check Sequence field (FCS) 


Q254.  (Topic 1) 

L2 switch in the case of multicast, and unicast the same, MAC address entries is set up to learn to get through the MAC. 

A. True 

B. False 


Q255.  (Topic 1) 

: 85 

In the cable broadband access solutions, users at home use () to access the broadband network