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NO.1 Refer to the exhibit.
Why is the neighbor relationship between R1 & R2 and R1 & R3 an L2-type neighborship?
A. because the area ID on R1 is different as compared to the area ID of R2 and R3
B. because the circuit type on those three routers is L1/L2
C. because the network type between R1, R2, and R3 is point-to-point
D. because the hello interval is not the same on those three routers
Answer: A
NO.2 Which OSPF feature supports LSA rate limiting in milliseconds to provide faster convergence?
A. LSA throttling
B. incremental SPF
C. fast hello
D. SPF tuning
Answer: A
NO.3 Which option is the default maximum age of the MAC address table?
A. 300 seconds
B. 500 seconds
C. 1200 seconds
D. 3600 seconds
Answer: A
NO.4 What is the preferred method to improve neighbor loss detection in EIGRP?
A. EIGRP natively detects neighbor down immediately, and no additional feature or configuration is
required.
B. BFD should be used on interfaces that support it for rapid neighbor loss detection.
C. Fast hellos (subsecond) are preferred for EIGRP, so that it learns rapidly through its own
mechanisms.
D. Fast hellos (one-second hellos) are preferred for EIGRP, so that it learns rapidly through its own
mechanisms.
Answer: B
NO.5 Which regular expression will only allow prefixes that originated from AS 65000 and that are
learned through AS 65001?
A. ^65000_65001$
B. 65000_65001$
C. ^65000_65001
D. ^65001_65000$
Answer: D
NO.6 In the DiffServ model, which class represents the lowest priority with the lowest drop
probability?
A. AF11
B. AF13
C. AF41
D. AF43
Answer: A
NO.7 Which three statements about the designated router election in IS-IS are true? (Choose three.)
A. If the IS-IS DR fails, a new DR is elected.
B. The IS-IS DR will preempt. If a new router with better priority is added, it just becomes active in the
network.
C. If there is a tie in DR priority, the router with a higher IP address wins.
D. If there is a tie in DR priority, the router with a higher MAC address wins.
E. If the DR fails, the BDR is promoted as the DR.
F. The DR is optional in a point-to-point network.
Answer: A,B,D
NO.8 What is the cause of ignores and overruns on an interface, when the overall traffic rate of the
interface is low?
A. a hardware failure of the interface
B. a software bug
C. a bad cable
D. microbursts of traffic
Answer: D