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QUESTION 1 #
VXLAN is irrelevant to SDN technology.
A. TRUE
B. FALSE
QUESTION 2 #
Congestion management uses queue scheduling to manage and control traffic when traffic congestion occurs.
A. TRUE
B. FALSE
QUESTION 3 #
Which of the following queue scheduling technologies is better in a fair manner?
A. WFQ
B. PQ
C. FIFO
D. RR
QUESTION 4 #
Which IP precedence value represents the critical service traffic?
A. 0
B. 2
C. 5
D. 6
QUESTION 5 #
Which of the following items is not the disadvantage of the traditional congestion avoidance mechanism (tail drop)?
A. Global TCP synchronization
B. High jitter and long delay
C. High cost
D. Packets are discarded without differentiating the priority
QUESTION 6 #
How is OPEX defined?
A. Maintenance cost
B. Total cost of ownership (TCO)
C. Operating cost
D. OandM costs
QUESTION 7 #
Which of the following statements regarding the trusted and untrusted zones are true? (Multiple Choice)
A. The direction for the access from the trusted zone to the untrusted zone is the outbound direction.
B. The direction for the access from the trusted zone to the untrusted zone is the inbound direction.
C. The security level of the trusted zone is 85.
D. The security level of the untrusted zone is 50.
QUESTION 8 #
Which QoS technology is usually used by congestion avoidance?
A. GTS
B. LR
C. CAR
D. WRED
QUESTION 9 #
During configuration of the WRED drop profile, the lower drop threshold and upper drop threshold for AF21 traffic are 35 and 40, the lower drop threshold and upper drop threshold for AF22 traffic are 30 and 40, and the lower drop threshold and upper drop threshold for AF23 traffic are 25 and 40. The maximum drop probability for AF21, AF22, and AF23 traffic is 10%. Before congestion occurs, which type of traffic can obtain bandwidth guarantee?
A. AF21
B. AF22
C. AF23
D. AF21, AF22, and AF23 traffic
QUESTION 10 #
Which information of labels is used for simple traffic classification?
A. DSCP priority
B. IP precedence
C. MPLS EXP priority
D. 802.1p priority
QUESTION 11 #
BFD is a universal fast detection technology that can implement fast switchover, so BFD does not need to be used with
other fast switching technologies.
A. TRUE
B. FALSE
QUESTION 12 #
Which of the following statements regarding the authentication domain of the Agile Controller are true? (Multiple Choice)
A. Authentication domain are classified into the pre-authentication domain, isolation domain, and post-authentication
domain.
B. A pre-authentication domain defines public network resources that users can access before passing identity
authentication in the area, for example, the DNS server, external authentication source, Service Manager, and Service
Controller.
C. An isolation domain defines resources that end-users passing identity authentication but failing the security check
can access. These resources such as the patch server and antivirus server can help end-users eliminate violations.
D. A post-authentication domain defines controlled network resources that end users can access after passing identity
authentication and security check, for example, the ERP system, financial system, and database.
QUESTION 13 #
Which of the following statements regarding VRRP load balancing are true? (Multiple Choice)
A. Multiple virtual routers can be configured on an interface of a router so that the router functions as the master of the virtual router and the backup of another virtual router.
B. In load balancing mode, multiple routers transmit service at the same time, so at least two or more virtual routers are required.
C. In load balancing mode, two or more VRRP groups are created, and multiple routers transmit services.
D. During priority configuration, the VRRP master of the three virtual routers can be on different routers.
Correct answer
Q1: A, Q2: A, Q3: A, Q4: C, Q5: B, Q6:A, Q7: AC, Q8: D, Q9: A, Q10: C, Q11: B, Q12: ABCD, Q13: CD
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