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Huawei HCIE-Routing&Switching (Written)(Huawei Certified ICT Expert-Routing & Switching) Sample Questions:

1. OSPFv3 Router-LSA is generated for each router. It describes the interface address and cost of each link of the router. It also contains the router ID of the neighboring router.

A) True
B) False

2. Which of the following statements are NOT true regarding the TCP sliding window? (Multiple Choice)

A) The size of the sliding window can only increase or stay the same.
B) The sender need not transmit a full window's worth of data.
C) If the retransmission timer expires but the sender has not received the acknowledgement, it will retransmit the unacknowledged data.
D) TCP sliding window allows the transmission of multiple frames before waiting for an acknowledgement.
E) The size of initial window is advertised by the sender.

3. When you perform troubleshooting on a LAN deployed with Huawei devices, you find that there is a large number of unicast frames with unknown MAC addresses.
What is the biggest risk for the switches?

A) Increased power consumption.
B) Exhausts available TCAM entries.
C) Available MAC address table entries in the system will be consumed.
D) Exhausts memory for buffered frames.
E) Exhausts available bandwidth.

4. Which of the following statements about the attributes of the ISIS protocol LSP message are correct? (Multiple choice)

A) The LSP fast flooding feature first spreads out LSPs smaller than the specified number to speed up the synchronization process of the LSDB.
B) Reduce the minimum interval for sending LSPs on an interface to speed up LSP diffusion.
C) When the link state information increases, the packet length of the SP can be increased, so that each LSP can carry more information.
D) Configure an intelligent timer generated by the LSP, which can automatically adjust the delay time according to the change frequency of the routing information.

5. The LAND attack is performed by the attacker sending a source address and a destination address to the destination host are the destination host, the same SYN packet on source port and the destination port. When the receiver waits for the final ACK packet from the sender, the connection is always in a semi-connected state, resulting in waste of limited TCP resources at the receiving end.

A) True
B) False

Solutions: