Exambible offers free demo for 300 101 route exam. "Implementing Cisco IP Routing", also known as ccnp route 300 101 exam, is a Cisco Certification. This set of posts, Passing the Cisco ccnp routing and switching route 300 101 complete video course exam, will help you answer those questions. The 300 101 dumps Questions & Answers covers all the knowledge points of the real exam. 100% real Cisco route 300 101 exams and revised by experts!

Q21. You have been asked to evaluate how EIGRP is functioning in a customer network. 

What is the advertised distance for the 192.168.46.0 network on R1? 

A. 333056 

B. 1938688 

C. 1810944 

D. 307456 

Answer:

Explanation: 


Q22. A network administrator is troubleshooting a DMVPN setup between the hub and the spoke. Which action should the administrator take before troubleshooting the IPsec configuration? 

A. Verify the GRE tunnels. 

B. Verify ISAKMP. 

C. Verify NHRP. 

D. Verify crypto maps. 

Answer:

Explanation: 


Q23. A network administrator uses IP SLA to measure UDP performance and notices that packets on one router have a higher one-way delay compared to the opposite direction. Which UDP characteristic does this scenario describe? 

A. latency 

B. starvation 

C. connectionless communication 

D. nonsequencing unordered packets 

E. jitter 

Answer:

Explanation: 

Cisco IOS IP SLAs provides a proactive notification feature with an SNMP trap. Each measurement

operation can monitor against a pre-set performance threshold.

Cisco IOS IP SLAs generates an SNMP trap to alert management applications if this threshold is crossed.

Several SNMP traps are available: round trip time, average jitter, one-way latency, jitter, packet loss, MOS, and connectivity tests.

Here is a partial sample output from the IP SLA statistics that can be seen:

router#show ip sla statistics 1

Round Trip Time (RTT) for Index 55

Latest RTT: 1 ms

Latest operation start time: *23:43:31.845 UTC Thu Feb 3 2005 Latest operation return code: OK

RTT Values:

Number Of RTT: 10 RTT Min/Avg/Max: 1/1/1 milliseconds Latency one-way time:

Number of Latency one-way Samples: 0

Source to Destination Latency one way Min/Avg/Max: 0/0/0 milliseconds Destination to Source Latency

one way Min/Avg/Max: 0/0/0 milliseconds 

Reference:

http://www.cisco.com/en/US/technologies/tk648/tk362/tk920/technologies_white_paper09186a0

0802d5efe.html


Q24. Which method allows IPv4 and IPv6 to work together without requiring both to be used for a single connection during the migration process? 

A. dual-stack method 

B. 6to4 tunneling 

C. GRE tunneling 

D. NAT-PT 

Answer:

Explanation: 

Dual stack means that devices are able to run IPv4 and IPv6 in parallel. It allows hosts to simultaneously

reach IPv4 and IPv6 content, so it offers a very flexible coexistence strategy. For sessions that support IPv6, IPv6 is used on a dual stack endpoint. If both

endpoints support IPv4 only, then IPv4 is used.

Benefits:

Native dual stack does not require any tunneling mechanisms on internal networks

Both IPv4 and IPv6 run independent of each other

Dual stack supports gradual migration of endpoints, networks, and applications. Reference: http://

www.cisco.com/web/strategy/docs/gov/IPV6at_a_glance_c45-625859.pdf


Q25. An organization decides to implement NetFlow on its network to monitor the fluctuation of traffic that is disrupting core services. After reviewing the output of NetFlow, the network engineer is unable to see OUT traffic on the interfaces. What can you determine based on this information? 

A. Cisco Express Forwarding has not been configured globally. 

B. NetFlow output has been filtered by default. 

C. Flow Export version 9 is in use. 

D. The command ip flow-capture fragment-offset has been enabled. 

Answer:

Explanation: 

We came across a recent issue where a user setup a router for NetFlow export but was unable to see the

OUT traffic for the interfaces in NetFlow Analyzer. Every NetFlow configuration aspect was checked and

nothing incorrect was found. That is when we noticed the `no ip cef' command on the router. CEF was

enabled at the global level and within seconds, NetFlow Analyzer started showing OUT traffic for the

interfaces. This is why this topic is about Cisco Express Forwarding.

What is switching?

A Router must make decisions about where to forward the packets passing through. This decision-making

process is called "switching". Switching is what a router does when it makes the following decisions:

1.Whether to forward or not forward the packets after checking that the destination for the packet is

reachable.

2.If the destination is reachable, what is the next hop of the router and which interface will the router use to

get to that destination.

What is CEF?

CEF is one of the available switching options for Cisco routers. Based on the routing table, CEF creates its

own table, called the Forwarding Information Base (FIB). The FIB is organized differently than the routing

table and CEF uses the FIB to decide which interface to send traffic from. CEF offers the following

benefits:

1.Better performance than fast-switching (the default) and takes less CPU to perform the same task.

2.When enabled, allows for advanced features like NBAR

3.Overall, CEF can switch traffic faster than route-caching using fast-switching

How to enable CEF?

CEF is disabled by default on all routers except the 7xxx series routers. Enabling and Disabling CEF is

easy. To enable CEF, go into global configuration mode and

enter the CEF command.

Router# config t

Router(config)# ip cef

Router(config)#

To disable CEF, simply use the `no' form of the command, ie. `no ip cef`.

Why CEF Needed when enabling NetFlow ?

CEF is a prerequisite to enable NetFlow on the router interfaces. CEF decides through which interface

traffic is exiting the router. Any NetFlow analyzer product will calculate the OUT traffic for an interface

based on the Destination Interface value present in the NetFlow packets exported from the router. If the

CEF is disabled on the router, the NetFlow packets exported from the router will have "Destination

interface" as "null" and this leads NetFlow Analyzer to show no OUT traffic for the interfaces. Without

enabling the CEF on the router, the NetFlow packets did not mark the destination interfaces and so

NetFlow Analyzer was not able to show the OUT traffic for the interfaces. Reference: https://

blogs.manageengine.com/network-2/netflowanalyzer/2010/05/19/need-for-cef- in-netflow-data-export.html


Q26. A network engineer finds that a core router has crashed without warning. In this situation, which feature can the engineer use to create a crash collection? 

A. secure copy protocol 

B. core dumps 

C. warm reloads 

D. SNMP 

E. NetFlow 

Answer:

Explanation: 

When a router crashes, it is sometimes useful to obtain a full copy of the memory image (called a core

dump) to identify the cause of the crash. Core dumps are generally very useful to your technical support representative.

Four basic ways exist for setting up the router to generate a core dump:

Using Trivial File Transfer Protocol (TFTP)

Using File Transfer Protocol (FTP)

Using remote copy protocol (rcp)

Using a Flash disk Reference: http://www.cisco.com/en/US/docs/internetworking/troubleshooting/guide/

tr19aa.html


Q27. You have been asked to evaluate how EIGRP is functioning in a customer network. 

What type of route filtering is occurring on R6 

A. Distribute-list using an ACL 

B. Distribute-list using a prefix-list 

C. Distribute-list using a route-map 

D. An ACL using a distance of 255 

Answer:

Explanation: 


Q28. Refer to the exhibit. 

Which command only announces the 1.2.3.0/24 network out of FastEthernet 0/0? 

A. distribute list 1 out 

B. distribute list 1 out FastEthernet0/0 

C. distribute list 2 out 

D. distribute list 2 out FastEthernet0/0 

Answer:

Explanation: 

Access list 2 is more specific, allowing only 1.2.3.0/24, whereas access list 1 permits all 1.0.0.0/8

networks. This question also asks us to apply this distribute list only to the outbound direction of the fast Ethernet 0/0 interface, so the correct command is "distribute list 2

out FastEthernet0/0."


Q29. Which technology was originally developed for routers to handle fragmentation in the path between end points? 

A. PMTUD 

B. MSS 

C. windowing 

D. TCP 

E. global synchronization 

Answer:

Explanation: 


Q30. Refer to the exhibit. The network setup is running the RIP routing protocol. Which two events will occur following link failure between R2 and R3? (Choose two.) 

A. R2 will advertise network 192.168.2.0/27 with a hop count of 16 to R1. 

B. R2 will not send any advertisements and will remove route 192.168.2.0/27 from its routing table. 

C. R1 will reply to R2 with the advertisement for network 192.168.2.0/27 with a hop count of 16. 

D. After communication fails and after the hold-down timer expires, R1 will remove the 192.168.2.0/27 route from its routing table. 

E. R3 will not accept any further updates from R2, due to the split-horizon loop prevention mechanism. 

Answer: A,C 

Explanation: