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H12-821 exam questions online exam practice

QUESTION 1

Which Of the following IEEE 802.11 standards is also known as Wi-Fi 6?

A. 802.11ac
B. 802.11n
C. 802.11ax
D. 802.11b

QUESTION 2

Which of the following attacks is not the network layer attack?

A. IP spoofing attack
B. ICMP attack
C. Smurf attack
D. ARP spoofing attack

QUESTION 3

CORRECT TEXT Compress the 2001:0DBB:B8:0000:C030:0000:0000:09A0:CDEF address.___________(if the
answer contains letters, capitalize them.)
Correct Answer: pending

QUESTION 4

ON a stateful inspection Firewall where there is no session table, when the status detection mechanism is enabled and
the second packet (CYN+ACK) of 3-way hadshakes reaches the firewall. Which of the following statements is true?

A. If the firewall security policy permits packets to pass, the session table is created.
B. By default, when status detection is disabled and the permit policy is configured packets can pass.
C. Packets must pass the firewall, and a session table is established.
D. If the firewall security policy permits packets to pass, the packets can pass the firewall.

QUESTION 5

Which of the following statements regarding an IP prefix are true?

A. An IP prefix filter is used to filter IP address prefixes and cannot match an IP prefix number and a prefix length at the
same time.

B. An IP prefix filter cannot be used to filter data packets.

C. An IP prefix filter is used to filter IP address prefixes and can match an IP prefix number and a prefix length at the
same time.

D. An IP prefix filter can be used to filter data packets.

QUESTION 6

Preferences of routing protocols determine the sequence In which a router selects a route among routes to the same
destination /earned through different routing protocols.

A. TRUE
B. FALSE

QUESTION 7

Which of the following statements regarding different LSA types is false?

A. LS Request packets contain only LS Type, LS ID, and Advertising Router.

B. LS Ack packets contain complete LSA information.

C. DD packets contain only LSA summary information, including LS Type, LS ID, Advertising Router, and LS Sequence
Number.

D. LS Update packets contain complete LSA information.

QUESTION 8

A local router runs IS-IS and its command output is shown in the following figure. Which of the following statements is
true?

A. The circuit level of S4/0/0 is Level-1.
B. S4/0/0 supports IPv6.
C. S4/0/0 sends IIH packets at the interval of 30s.
D. The cost of S4/0/0 is 20.

QUESTION 9

Which of the following statements regarding the stateful inspection firewall is true?

A. When the stateful inspection firewall checks packets, packets of one same connection are not correlated.

B. Because UDP is a connectionless protocol, so the stateful inspection firewall cannot match UDP packets with the
status table.

C. The stateful inspection firewall only needs to match the first data packet against a rule, and the subsequent packets
of the connection are matched directly in the state table.

D. The stateful inspection firewall needs to match the rules for each incoming packet.

QUESTION 10

DRAG DROP
Drag the following VRRP states to the corresponding working mechanisms.
Select and Place:

Correct Answer:

QUESTION 11

DRAG DROP
What is the correct procedure for a VLAN pool to assign terminals to VLANs. Select and Place:

Correct Answer:

QUESTION 12

The Interface \P address and VRRP virtual IP address can be the same.

A. TRUE
B. FALSE

Verify answer:

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