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96.
Which one of the following is the port used in NTP?
- A.TCP 160
- B.UDP 321
- C.TCP 123
- D.UDP 123
- E.UDP 161
- Answer & Explanation
- Report
Answer : [D]
Explanation :
Explanation :
| NTP uses UDP 123 to communicate. |
97.
You have been asked to configure SSH using the command line interface. However, you
have discovered that some keys were left over on the router. What command is used to clear
the RSA keys so that you can regenerate them?
- A.router1# clear rsa keys
- B.Router1#(config) rsa clear keys
- C.Router1#(config) crypto key zeroize rsa
- D.Router1# crypto rsa key zeroize
- E.Router1# crypto key zeroize rsa
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
| The keys are cleared from the global configuration menu. The correct command is crypto key zeroize rsa . |
98.
Which of the following are not security levels used in the security model in SNMP v2c?
(Choose two.)
- A.authNoPriv
- B.noAuthPriv
- C.noAuthNoPriv
- D.authPriv
- Answer & Explanation
- Report
Answer : [B, D]
Explanation :
Explanation :
| The security levels associated with SNMP v2c are authNoPriv and noAuthNoPriv. This is because there is not support for encryption until SNMP v3. There is no such level as noAuthPriv because it doesn ' t make sense to encrypt without authentication. |
99.
Which of the following is not enabled in SDM one - step lockdown but is configured using
AutoSecure?
- A.AAA
- B.CBAC
- C.NTP
- D.Unicast Reverse Path Forwarding
- Answer & Explanation
- Report
Answer : [A]
Explanation :
Explanation :
| AAA is the only one in the list that is configured in AutoSecure but not SDM one - step lockdown. |
100.
Which of the following is not one of the features that are enabled during lockdown of the
forwarding plane of a router?
- A.TCP Intercept
- B.uRPF
- C.SSH
- D.CEF
- E.CBAC
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
| The only answer that is not one of the IOS features that are enabled during lockdown of the forwarding plane is SSH. SSH is part of the management plane. |
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