Ccna certification Practice Tests

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Appendix 

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  Answers to Practice Test Questions

 44.  B.  Standard access control lists (ACLs) can be used in conjunction with the SNMP agent 

configuration. First a standard ACL is created containing the NMS IP. Then, when the 

snmp-server command is used, it becomes the last argument. For example, a standard 

ACL of 2 would be added as follows: 

snmp-server community snmpreadonly  

read-only 2. There is no such thing as encrypted communities. There is no such thing  

as SNMP callback security; callback security is related to PPP. SNMP does not employ 

SHA-256 as its encryption protocol.

 45.  C.  The first portion of the command, 

snmp-server host 192.168.1.5, will configure 

the SNMP agent to send traps to the host 192.168.1.5. The second portion of the 

command, 

version 2c C0mmun1ty, sets the SNMP version to 2c and the community to 

“C0mmun1ty.” All of the other command configurations are incorrect.

 46.  C.  SNMP uses UDP port 162 for communication from an SNMP agent to the network 

management station for trap and inform messages. SNMP agents listen on UDP/161. 

SNMP does not use TCP for messaging. UDP/514 is used for syslog messaging.

 47.  C.  The command 

show snmp host will display the host that is configured to receive 

notifications of trap or inform messages from the router or switch. The command 

show 

snmp is incorrect. The command show snmp community is incorrect. The command show 

snmp notifications is incorrect.

 48.  B.  When you begin to configure SNMPv3 for a restricted OID, the first step is configuring 

a view. The view allows or restricts what the user will have access to. All of the other 

options come after configuring a view.

 49.  D.  The router or switch sends syslog messages to the syslog server on port 514 with UDP. 

SNMP agents listen on UDP/161. SNMP does not use TCP for messaging. SNMP sends 

traps on UDP/162.

 50.  C.  The command 

logging trap debugging will configure syslog events to be sent to the 

syslog server for the severity levels of debugging (7) through emergency (0). The command 

syslog debugging is incorrect. The command logging debugging is incorrect. The 

command 

log-level debugging is incorrect.

 51.  B.  The command 

logging trap 4 will trap all messages with warnings to the syslog 

server. The command 

logging server 4 is incorrect. The command logging trap 5 

is incorrect, as it will send all notice messages. The command 

logging server 5 is 

incorrect.

 52.  D.  The command 

service timestamps log datetime will configure syslog messages 

to be logged with the date and time rather than the arbitrary sequence number. The 

command 

logging timestamps log datetime is incorrect. The command logging 

timestamps datetime is incorrect. The command service datetime timestamps is 

incorrect.

 53.  A.  The command 

logging console 0 will configure the logging to the console for the 

severity level of facility 0, which is alerts. The 

logging command is not configured in the 

config-line prompt, therefore, both options B and D are incorrect. The command 

logging 

console 7 is incorrect because it sets the logging level to debug.

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Chapter 4: IP Services (Domain 4)