400-101問題集、300-365試験問題
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試験番号：400-101問題集試験科目：「CCIE Routing and Switching Written Exam v5.0」
最近更新時間：2016-11-02
問題と解答：995
試験番号：300-365試験問題試験科目：「Deploying Cisco Wireless Enterprise Networks」
最近更新時間：2016-11-02
問題と解答：62
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NO.1 Which statement describes the effect of the configuration line redistribute maximum-prefix
1500 90 withdraw?
A. After the 1500th route is redistributed, a warning is posted in the log file and 90 more routes are
redistributed before further routes are discarded.
B. The routing protocol receives 1500 routes. After the routing process has redistributed 90% of the
routes, the process supernets routes and injects a NULL route to prevent black-hole routing.
C. After the 1500th route is redistributed, further routes are discarded only if the CPU is above 90%.
D. After the 1350th route is redistributed, a warning is posted in the log file until the 1500th route is
redistributed, and then further routes are discarded.
Answer: D
400-101教育 400-101復習資料
NO.2 Which two statements about the max-age time in IS-IS are true? (Choose two.)
A. The IS-IS max-age time is 20 minutes by default.
B. The IS-IS max-age time decrements from max-age to zero.
C. The IS-IS max-age time increments from zero to max-age.
D. The IS-IS max-age time is 60 minutes by default.
Answer: A,B
400-101改訂
NO.3 Refer to the exhibit.
Which statement about configuring the switch to manage traffic is true?
A. The switchport priority extend cos command on interface FastEthernet0/0 enables traffic to and
from the PC to use the high priority data queue that is assigned to the IP phone.
B. When the switch is configured to trust the CoS label of incoming traffic, the trusted boundary
feature is disabled automatically.
C. The switchport priority extend cos command on interface FastEthernet0/0 prevents traffic to and
from the PC from taking advantage of the high-priority data queue that is assigned to the IP phone.
D. The mls qos cos override command on interface FastEthernet0/0 configures the port to trust the
CoS label of traffic to and from the PC.
Answer: C
400-101答案
Explanation:
In some situations, you can prevent a PC connected to the Cisco IP Phone from taking advantage of a
high-priority data queue. You can use the switchport priority extend cos interface configuration
command to configure the telephone through the switch CLI to override the priority of the traffic
received from the PC.
Reference:
http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2950/software/release/121_22_ea2/co
nfiguration/guide/2950scg/swqos.html
NO.4 Which two statements about Inverse ARP are true? (Choose two.)
A. It translates Layer 2 addresses to Layer 3 addresses.
B. It translates Layer 3 addresses to Layer 2 addresses.
C. It uses the same operation code as ARP.
D. It uses ARP stuffing.
E. It supports static mapping.
F. It uses the same packet format as ARP.
Answer: A,F
400-101書籍
Explanation:
Inverse Address Resolution Protocol (Inverse ARP or InARP) is used to obtain Network
Layer addresses (for example, IP addresses) of other nodes from Data Link Layer (Layer 2) addresses.
It is primarily used in Frame Relay (DLCI) and ATM networks, in which Layer 2 addresses of virtual
circuits are sometimes obtained from Layer 2 signaling, and the corresponding Layer 3 addresses
must be available before those virtual circuits can be used. Since ARP translates Layer 3 addresses to
Layer 2 addresses, InARP may be described as its inverse. In addition, InARP is implemented as a
protocol extension to ARP: it uses the same packet format as ARP, but different operation codes.
Reference: http://en.wikipedia.org/wiki/Address_Resolution_Protocol
