A. ip route 209.165.201.0 255.255.255.224 209.165.202.130
B. ip route 0.0.0.0 0.0.0.0 209.165.200.224
C. ip route 209.165.200.224 255.255.255.224 209.165.202.129 254
D. ip route 0.0.0.0 0.0.0.0 209.165.202.131
Correct Answer: C
ccna 1 exam 3.264 Chapter 12 Point-to-Point WAN Table 12-6 Possible Causes of Data Link Problems in a Serial LinkLine Status Protocol Status Possible CauseOn Both ends off 1 Mismatched encapsulation commandOn One end is off, the other end is on Disable live (Keepalive) on one end of the on stateOn Both ends off PAP/CHAP authentication failedNote 'In this case, the line state can be changed from up/up to up/down or up/up, etc. when the router keeps trying to encapsulate the job. Tip: As with the other troubleshooting content chapters in this book, Table 12-6 lists some of the more common types of failures, rather than all cases.The first of these problems is a mismatch between the configured data link layer protocols, which is easily identified and fixed. The seventh row of the show interfaces command output lists the encapsulation type, so using this command on both routers will quickly identify the problem. Another approach is to quickly browse the configuration and remember that HDLC is the default serial encapsulation, so that you can determine if the encapsulation matches incorrectly. The solution to this type of problem is simple, reconfigure one of the two routers to match the encapsulation command on the other router.The other two root causes require more space for discussion to further understand and determine if they are the true cause of the failure. The next two subsections will explore these two types of problems in depth. Survival FailuresThe second type of problem involves a feature called Keepalive. The Keepalive feature helps the router recognize when a link is no longer functional, allowing the router to shut down the interface while using an alternative IP route.The keepalive feature (by default) causes routers to send keepalive messages to each other every 10 seconds (the default setting). (Cisco defines a dedicated HDLC survival message and uses PPP to define survival messages as part of the LCP.) This 10-second clocker is the survivor interval. If a router does not receive any survivor messages from another router within a number of survivor intervals (the default is 3 or 5 intervals, depending on the IOS version), that router can shut down the interface and consider the interface no longer operational.
A. ip route 209.165.201.0 255.255.255.224 209.165.202.130
B. ip route 0.0.0.0 0.0.0.0 209.165.200.224
C. ip route 209.165.200.224 255.255.255.224 209.165.202.129 254
D. ip route 0.0.0.0 0.0.0.0 209.165.202.131
Correct Answer: C
A. to analyze traffic and drop unauthorized traffic from the Internet
B. to transmit wireless traffic between hosts
C. to pass traffic between different networks
D. forward traffic within the same broadcast domain
Correct Answer: C
A. switchport mode trunk
B. switchport mode dynamic desirable
C. switchport mode dynamic auto
D. switchport nonegotiate
Correct Answer: B
A. transfers a backup configuration file from a server to a switch using a username and password
B. transfers files between file systems on a router
C. transfers a configuration files from a server to a router on a congested link
D. transfers IOS images from a server to a router for firmware upgrades
Correct Answer: D
A. different nonoverlapping channels
B. different overlapping channels
C. one overlapping channel
D. one nonoverlapping channel
Correct Answer: D
Exam Code: 200-301
Exam Duration: 120 minutes
Exam Topics:
Latest Update: 11.20,2024
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