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NEW QUESTION 205
A company network through the corporate router RTA access port S0 / 0 is connected to the external network.In order to avoid congestion at the egress of the external network, the company hopes to limit the data traffic of various departments in the inbound direction of the RTA interface S0/0 .Which of the following technologies is appropriate ?

• A. LR
• B. CAR
• C. WRR
• D. GTS

Answer: B

 

NEW QUESTION 206
The following options belong to CPE are

• A. Wide Router
• B. access into the switch
• C. access the server
• D. machine top box
• E. cable modem
• F. DSLAM

Answer: B,C,F

 

NEW QUESTION 207
Which of the following descriptions about L2TP tunnel ( Tunnel ) and L2TP session ( Session ) are correct is ____ .( Choose one or more )

• A. The L2TP session must be carried out after the L2TP tunnel is established
• B. will identify the session ( the Session ID ) is not the same message can reuse the same tunnel
• C. will identify the session ( the Session ID ) is not the same message can not reuse the same tunnel
• D. L2TP session can be carried out before L2TP tunnel is established

Answer: A,B

 

NEW QUESTION 208
Network security incident management needs to pay attention to the content of _____ .

• A. Net happened on network network attacks
• B. mesh network equipment room fire
• C. network detects the envelope ARP virus
• D. network network equipment in the room interrupted

Answer: A,C,D

 

NEW QUESTION 209
The following VPN technology, belonging to the second layer of VPN are ____ .( Choose one or more )

• A. VLL
• B. IPSec VPN
• C. GRE VPN
• D. VPLS

Answer: A,D

 

NEW QUESTION 210
Common VPI/VCI values in ADSL applications include ____ .( Choose one or more )

• A. 0/32
• B. 0/35
• C. 0/16
• D. 0/30

Answer: A,B

 

NEW QUESTION 211
Which of the following descriptions of the traditional telephone system is correct is ______ .

• A. pass the real machine is FXS ordinary telephone devices can be connected to the central office switch via an ordinary telephone line FXO interface.
• B. Electric as telephone ringing tone dial tone, is a pair of end PBX to provide voltage and central office switches completed.
• C. electrically telephone subscriber loop access through the PBX or central office switches, are connected to the telephone subscriber loop and the PBX a line between the pair comprising TiP and Ring , wherein Ring ground, TiP then PBX negative electrode.

Answer: B

 

NEW QUESTION 212
Which of the following are information signaling ____ .

• A. used when the user using the telephone, after the telephone handset from the chamber called number, outgoing handset to ring back tone.
• B. by the user using the phone, pick up the telephone handset called number, called the ellipsoid of the ringing telephone.
• C. by the user using the phone, pressing the number keys to PBX transmits the called number representing a series of low and high audio frequencies of the audio frequency.
• D. by the user when using the phone, pick up the telephone handset, the handset came from the dial tone.

Answer: A,B,D

 

NEW QUESTION 213
In the PE on rub see a VPN private network table, can be found through the through MP-BGP routing protocol has learned the end VPN private network by a user, but this time to check the PE at even CE provided apparatus routing table, but It is found that the private network route cannot be learned .Which of the following reasons may be ____ ?

• A. The MP-BGP neighbor establishment between PEs is abnormal
• B. The interface between the PE and the CE is not bound to the VPN
• C. The routing protocol between PE and CE is abnormal, and routing information cannot be exchanged normally

Answer: B

 

NEW QUESTION 214
VPN that Which of the following types of RT configuration is wrong ?

• A. need to isolate the private network user belongs to two VPN of RT attributes which Import Target attributes and Export Target intersection exists between attribute
• B. required to isolate the private network user belongs to two VPN of RT attributes which Export Target attributes and Export Target intersection exists between attribute
• C. needs to be exchange of visits of two private network user belongs VPN of RT attribute, its Import Target property and Import Target intersection exists between property
• D. need to exchange visits of two private network user belongs VPN 's RT attribute, its Import Target property and Export Target intersection exists between property

Answer: A

 

NEW QUESTION 215
In the H.323 protocol, which of the following protocols is used to negotiate the capabilities of both parties ?

• A. H.225.0
• B. RAS
• C. H.245
• D. to the answers are right

Answer: C

 

NEW QUESTION 216
SSL ( Securit Sockets Laer , Secure Sockets Layer ) protocol handshake layer which includes several of the following protocol modules ?

• A. shake hands Agreement
• B. will then maintenance agreement
• C. secret key change protocol
• D. told police protocol

Answer: A,C,D

 

NEW QUESTION 217
When SIP UA calls the called party through the redirect server, ____ .

• A. In addition to the external location request message, a calling LA other messages do not need to be forwarded by the redirection server
• B. Lord called UA All messages are forwarded by redirecting server
• C. to the not right
• D. heavy directional server to help eligible post called UA rear position, the main port called UA directly to the called UA initiates a call

Answer: A,D

 

NEW QUESTION 218
Which of the following commands can check whether there is an LSP of a certain forwarding pricing class ______ .

• A. displa mpls ldp session
• B. displa mpls ldp lsp
• C. displa mpl s ldp
• D. displa mpls ldp peer

Answer: B

 

NEW QUESTION 219
In the H.323 protocol, which of the following protocols is used to negotiate the capabilities of the two parties ?

• A. H.225.0
• B. RAS
• C. H.245
• D. to the answers are right

Answer: C

 

NEW QUESTION 220
Regarding the echo in the VoIP telephone system, which of the following descriptions are wrong ?

• A. back sound into electrical echo and acoustic echo, electrical echo conventional telephone systems is mainly due to two, four-wire transducer impedance mismatch caused by
• B. language voice gateway equipment itself does not bring new echo, but the IP network to bring network latency, increasing the echo time delay, leading to the original feel of the echo in VoIP become energy network The echo of being felt.
• C. In VoIP networks, echo is related to the choice of encoding.The greater the compression ratio, the greater the relative echo in the network.
• D. speech voice gateway device when performing analog to digital conversion may introduce echo, an echo suppression function but can be configured to reduce the impact on the voice gateway.

Answer: C,D

 

NEW QUESTION 221
In the BGP MPLS VPN network, which of the following functions must be supported by ordinary CE equipment ?

• A. MP-BGP
• B. MPLS LDP
• C. Road multiple instances of the protocol
• D. MPLS
• E. to the all wrong

Answer: E

 

NEW QUESTION 222
Which of the following statements about the access network is correct is _____

• A. Compared with backbone network, access network is often the bottleneck of network transmission speed
• B. The access network can also be Ethernet
• C. access network typically includes a user transmission system, terminal multiplexers or network,
• D. access into generally refers to the connection between the user and the network operator of the network close to the user central office

Answer: A,B,C,D

 

NEW QUESTION 223
To reinforce the company's network, you need to ____ user authentication and authorization.

• A. Gordon user land network equipment
• B. Liu Users browse the company's external website
• C. access to the network of the network printer / video terminals
• D. access into the internal network users

Answer: A,D

 

NEW QUESTION 224
Configure the following commands on the MSR router:
qos rtpq start port 16384end-port 32767bandwidth1000cbs25000
Then what is incorrect in the following statement is

• A. provided apparatus applied RTPQ queue
• B. start-por and end-port are configured with UDP port numbers
• C. its configured start-port port number as the source port number, End Port- port number and destination port number
• D. start-por and end-port are configured with TCP port numbers

Answer: C,D

 

NEW QUESTION 225
The correct statement regarding the defense of malformed messages is ______ .

• A. needles of ping of death attacks by detecting sensing Ping whether the request packet over a length of over 65536 bytes to discriminate whether the attack packets, if the length exceeds 65536 bytes, the packet will be discarded.
• B. needle for Teardrop , information may be cached fragment attack by class, each source, the purpose of the IP , the packet ID the same set of configuration, the maximum cache 10,000 groups , the data in the buffer reaches a maximum when directly discards fragmented, while According to the cached fragmentation information, analyze the legitimacy of IP packet segmentation, and directly discard illegal IP packets to resist attacks
• C. abnormal shaped packet attacks targeted defense needs for each attack
• D. needle deformity TCP packet attack, by determining TCP determines whether the packet is a packet attack packet flag for .6 flag bits are all 1 or .6 flag bits are all is 0 or SN and FIN simultaneously It is a packet discards

Answer: A,B,C,D

 

NEW QUESTION 226
In the L2TP networking, the command for configuring LNS to perform mandatory LCP renegotiation authentication for users is ____ .

• A. Configure manclator-lcp in the global view
• B. Configure authentication-mode mandator-lcp in the L2TP-group view
• C. In the L2TP-group view, configure mandator-lcp
• D. In the L2TP-group view, configure mandator lcp

Answer: C

 

NEW QUESTION 227
QoS can determine which specific behavior set a message belongs to through _____ .( Choose one or more )

• A. Configure the trusted port priority or packet priority on the interface
• B. match with COS
• C. matching with 802.1x
• D. match with IP Precedence
• E. match with DSCP
• F. matched with IP addresses , the MAC address , the VLAN number, protocol type, port number of the transport layer

Answer: A,B,D,E,F

 

NEW QUESTION 228
Among multiple VRF technologies, one VRF will have ______ .

• A. independent stand routing table
• B. independent stand routing protocol process
• C. independent stand router CPU
• D. independent stand physical or logical interface

Answer: A,B,D

 

NEW QUESTION 229
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