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Q256. (Topic 2)
Frequently used data network debugging Tracert, in its working mechanism, the total use of () kind of ICMP packets.
Q257. (Topic 1)
In which the network topology, a link failure will cause all traffic disruption
Q258. (Topic 2)
Using the IP address 184.108.40.206 natural mask of the network address is
Q259. (Topic 2)
The following statement on the correct route aggregation is
A. routing aggregation technology can only address the hierarchical structure of the system to use, the address for the planar structure is not
B. routing aggregation technology can be an organization for all IP addresses as a routing routing convergence routing tables thus reducing the number of routing entries
C. External routing aggregation technology can be screened subnet topology change within the
D. Dynamic routing aggregation can be a dynamic routing protocol implementation, but a variety of different dynamic routing protocols for route summarization is not the same degree of support
Q260. (Topic 1)
ADSL, VDSL can be used as the encoding ().
Q261. (Topic 2)
() Is used to check whether the IP network connections and hosts up to the most common method. Such as a router between the host and the connectivity between the router problems can use it to judge.
Q262. (Topic 1)
The following is a correct description of ADSL
A. asymmetric uplink and downlink transmission speed of DSL technology
B. downlink transmission rate symmetric DSL technology
C. uplink downlink rate can be larger than the rate
D. downlink rate than upstream rate can be large
Q263. (Topic 4)
Judge: VC switching refers to the exchange process only change the VCI value, pass-through VPI value. The VP exchange process VPI, VCI has changed.
Q264. (Topic 1)
LLC header consists of three parts, namely,
Q265. (Topic 2)
TRACERT process, the agreement will not be used is ().
Q266. (Topic 2)
IP address 192.168.1.7 with natural mask, its network address ().
Q267. (Topic 2)
Assuming that the IP address 220.127.116.11, subnet mask 255.255.252.0, then the IP address where the segment and subnet broadcast address are
A. 18.104.22.168 22.214.171.124
B. 126.96.36.199 188.8.131.52
C. 184.108.40.206 220.127.116.11
D. 18.104.22.168 22.214.171.124
Q268. (Topic 1)
VPN can be divided according to achieve the level ().
D. GRE VPN
Q269. (Topic 4)
PPP connection is established, you can use which protocol component Echo-Request and Echo-Reply message packet detect link status ().
A. Data Package
Q270. (Topic 1)
ICMP packets to pass the test ().
A. ICMP packet inspection and field
B. IP packet header inspection and
C. ICMP message code field
D. ICMP message type field