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Study the valid HCNP-R&S H12-222-ENU exam questions and answers below.
Which of the following is not included in the limitations of the traditional network?

A. network protocol to achieve is complex, operation and maintenance is more difficult.

B. The adjustment ability of traffic path is not flexible enough.

C. The network new business promotion speed is slower.

D. The achieve mechanism of different manufacturers equipment is similar; the differences of operating orders are small, which are easy to operate.

Answer: D

Traditional packet loss strategy uses the method of Tail-Drop, which leads to TCP global synchronization phenomenon.

A. True

B. False

Answer: A

Which of the following descriptions about agile controller business accompanying is correct? (Multiple choice)

A. When the administrator configure the business accompanying, should select the appropriate user authentication point and policy enforcement point.

B. In the business accompanying, can define the user class security group, this part of the security group members mainly refers to the network of a static network segment or server resources, their IP needs to manually set up a binding with the security group.

C. In the business accompanying, through a matrix relationship to describe a security group (such as users) to another security group (such as server) access rights relationship.

D. In the business accompanying, by specifying the forwarding priority of the security group to which some VIP users belong to guarantee the user’s network using experience.

Answer: ACD

Single-packet attack means attacker control the zombie host, send a large number of attack packets to the target network, resulting in the attack network congestion, system resources exhausted.

A. True

B. False

Answer: B

The length of the MPLS header is 32 bits, including 20 bits’label in length is used for message forwarding; the 3 bits’ EXP in length is used to bear the precedence in IP message; the 1bit’s stack bottom label S is used to indicate whether it is the last label (MPLS labels can be nested in multiple layers). Which of the following description about the 8bits’ TTL in length is correct?

A. The role is similar to the TTL of the IP header, to prevent message loops.

B. it is mainly used for control of label management.

C. it is used for control of the upstream device when distributing the label.

D. Limit the LSR.

Answer: A


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