Ccna certification Practice Tests

A.  Hello packets

B.  LSA packets

C.  LSAck packets

D.  Dead packets

 65.  What option should be configured along with interface tracking that will allow the 

original router to regain its active status once a failed link is repaired?

A.  Interface tracking resets

B.  Failback option

C.  Preempt option

D.  Priority tracking

 66.  Which is a disadvantage of using NAT?

A.  Creates switching path delays

B.  Introduces security weaknesses

C.  Requires address renumbering

D.  Increases bandwidth utilization

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Chapter 8 

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  Practice Exam 2 

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 67.  Which type of NAT is used for one-to-one mapping between local and global addresses?

A.  Dynamic NAT

B.  Static NAT

C.  NAT Overloading

D.  Symmetric NAT

 68.  Which protocol helps synchronize time for routers and switches?

A. SNMP

B. NTP

C. Syslog

D. ICMP

 69.  Which protocol and port number does DNS use for direct queries?