ENCORE4 at TU Berlin

Flashcards and summaries for ENCORE4 at the TU Berlin

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Exemplary flashcards for ENCORE4 at the TU Berlin on StudySmarter:

Which OSPF networks types are compatible and allow communication through the two peering devices? 

A. broadcast to nonbroadcast

B. point-to-multipoint to nonbroadcast 

C. broadcast to point-to-point 

D. point-to-multipoint to broadcast

Exemplary flashcards for ENCORE4 at the TU Berlin on StudySmarter:

Based on this interface configuration, what is the expected state of OSPF adjacency?
R1 interface GigabitEthernet0/1
ip address 192.0.2.1 255.255.255.252
ip ospf 1 area 0
ip ospf hello-interval 2 ip ospf cost 1

R2 interface GigabitEthernet0/1
ip address 192.0.2.2 255.255.255.252
ip ospf 1 area 0 ip ospf cost 500

A. Full on both routers
B. not established
C. 2WAY/DROTHER on both routers
D. FULL/BDR on R1 and FULL/BDR on R2

Exemplary flashcards for ENCORE4 at the TU Berlin on StudySmarter:

Refer to the exhibit. Which statement about the OPSF debug output is true?
R1#debug ip ospf hello R1#debug condition interface fa0/1 Condition 1 set
A. The output displays all OSPF messages which router R1 has sent or received on interface Fa0/1 

B. The output displays all OSPF messages which router R1 has sent or received on all interfaces 

C. The output displays OSPF hello messages which router R1 has sent or received on interface Fa0/1 

D. The output displays OSPF hello and LSACK messages which router R1 has sent or received

Exemplary flashcards for ENCORE4 at the TU Berlin on StudySmarter:

Which EIGRP feature allows the use of leak maps? 

A. offset-list 

B. neighbor 

C. address-family 

D. stub

Exemplary flashcards for ENCORE4 at the TU Berlin on StudySmarter:

Which two statements about EIGRP load balancing are true? (Choose two)
A. EIGRP supports 6 unequal-cost paths
B. A path can be used for load balancing only if it is a feasible successor
C. EIGRP supports unequal-cost paths by default
D. Any path in the EIGRP topology table can be used for unequal-cost load balancing
E. Cisco Express Forwarding is required to load-balance across interfaces

Exemplary flashcards for ENCORE4 at the TU Berlin on StudySmarter:

Which statement about LISP encapsulation in an EIGRP OTP implementation is true?
A. OTP uses LISP encapsulation for dynamic multipoint tunneling
B. OTP maintains the LISP control plane
C. OTP uses LISP encapsulation to obtain routes from neighbors
D. LISP learns the next hop

Exemplary flashcards for ENCORE4 at the TU Berlin on StudySmarter:

Which reason could cause an OSPF neighborship to be in the EXSTART/EXCHANGE state?

A. Mismatched OSPF network type 

B. Mismatched areas 

C. Mismatched MTU size

D. Mismatched OSPF link cost

Exemplary flashcards for ENCORE4 at the TU Berlin on StudySmarter:

Which feature is supported by EIGRP but is not supported by OSPF? 

A. route summarization 

B. equal-cost load balancing 

C. unequal-cost load balancing 

D. route filtering

Exemplary flashcards for ENCORE4 at the TU Berlin on StudySmarter:

Question 1 A local router shows an EBGP neighbor in the Active state. Which statement is true about the local router?
A. The local router has active prefix in the forwarding table firom the neighboring router
B. The local router has BGP passive mode configured for the neighboring router
C. The local router is attempting to open a TCP session with the neighboring router.
D. The local router is receiving prefixes from the neighboring router and adding them in RIB-IN

Exemplary flashcards for ENCORE4 at the TU Berlin on StudySmarter:

What is the correct EBGP path attribute list, ordered from most preferred to the least preferred, that the BGP best-path algorithm uses?

A. weight, AS path, local preference, MED
B. weight, local preference, AS path, MED
C. local preference, weight, AS path, MED
D. local preference, weight, MED, AS path

Exemplary flashcards for ENCORE4 at the TU Berlin on StudySmarter:

Which PAgP mode combination prevents an Etherchannel from forming?
A. auto/auto
B. desirable/desirable
C. auto/desirable
D. desirabl

Exemplary flashcards for ENCORE4 at the TU Berlin on StudySmarter:

Refer to the exhibit. A port channel is configured between SW2 and SW3. SW2 is not running Cisco operating system. When all physical connections are mode, the port channel does not establish. Based on the configuration excerpt of SW3, what is the cause of the problem

A. The port channel on SW2 is using an incompatible protocol

B. The port-channel trunk is not allowing the native VLAN 

C. The port-channel should be set to auto 

D. The port-channel interface lead balance should be set to src-mac

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Exemplary flashcards for ENCORE4 at the TU Berlin on StudySmarter:

ENCORE4

Which OSPF networks types are compatible and allow communication through the two peering devices? 

A. broadcast to nonbroadcast

B. point-to-multipoint to nonbroadcast 

C. broadcast to point-to-point 

D. point-to-multipoint to broadcast

A. broadcast to nonbroadcast

The following different OSPF types are compatible with each other: + Broadcast and Non-Broadcast (adjust hello/dead timers) + Point-to-Point and Point-to-Multipoint (adjust hello/dead timers) Broadcast and Non-Broadcast networks elect DR/BDR so they are compatible. Point-to-point/multipoint do not elect DR/BDR so they are compatible.

ENCORE4

Based on this interface configuration, what is the expected state of OSPF adjacency?
R1 interface GigabitEthernet0/1
ip address 192.0.2.1 255.255.255.252
ip ospf 1 area 0
ip ospf hello-interval 2 ip ospf cost 1

R2 interface GigabitEthernet0/1
ip address 192.0.2.2 255.255.255.252
ip ospf 1 area 0 ip ospf cost 500

A. Full on both routers
B. not established
C. 2WAY/DROTHER on both routers
D. FULL/BDR on R1 and FULL/BDR on R2

B. not established

ENCORE4

Refer to the exhibit. Which statement about the OPSF debug output is true?
R1#debug ip ospf hello R1#debug condition interface fa0/1 Condition 1 set
A. The output displays all OSPF messages which router R1 has sent or received on interface Fa0/1 

B. The output displays all OSPF messages which router R1 has sent or received on all interfaces 

C. The output displays OSPF hello messages which router R1 has sent or received on interface Fa0/1 

D. The output displays OSPF hello and LSACK messages which router R1 has sent or received

C. The output displays OSPF hello messages which router R1 has sent or received on interface Fa0/1

ENCORE4

Which EIGRP feature allows the use of leak maps? 

A. offset-list 

B. neighbor 

C. address-family 

D. stub

D. stub
If we configured an EIGRP stub router so that it only advertises connected and summary routes. But we also want to have an exception to this rule then we can configure a leak-map.As we can see the leak-map feature goes long with ‘eigrp stub’ command.

ENCORE4

Which two statements about EIGRP load balancing are true? (Choose two)
A. EIGRP supports 6 unequal-cost paths
B. A path can be used for load balancing only if it is a feasible successor
C. EIGRP supports unequal-cost paths by default
D. Any path in the EIGRP topology table can be used for unequal-cost load balancing
E. Cisco Express Forwarding is required to load-balance across interfaces

A,B

EIGRP provides a mechanism to load balance over unequal cost paths (or called unequal cost load balancing) through the “variance” command. In other words, EIGRP will install all paths with metric < variance * best_metric into the local routing table, provided that it meets the feasibility condition to prevent routing loop. The path that meets this requirement is called a feasible successor. If a path is not a feasible successor, it is not used in load balancing. Note: The feasibility condition states that, the Advertised Distance (AD) of a route must be lower than the feasible distance of the current successor route

ENCORE4

Which statement about LISP encapsulation in an EIGRP OTP implementation is true?
A. OTP uses LISP encapsulation for dynamic multipoint tunneling
B. OTP maintains the LISP control plane
C. OTP uses LISP encapsulation to obtain routes from neighbors
D. LISP learns the next hop

A

ENCORE4

Which reason could cause an OSPF neighborship to be in the EXSTART/EXCHANGE state?

A. Mismatched OSPF network type 

B. Mismatched areas 

C. Mismatched MTU size

D. Mismatched OSPF link cost

C. Mismatched MTU size

Neighbors Stuck in Exstart/Exchange State The problem occurs most frequently when attempting to run OSPF between a Cisco router and another vendor’s router. The problem occurs when the maximum transmission unit (MTU) settings for neighboring router interfaces don’t match. If the router with the higher MTU sends a packet larger that the MTU set on the neighboring router, the neighboring router ignores the packet

ENCORE4

Which feature is supported by EIGRP but is not supported by OSPF? 

A. route summarization 

B. equal-cost load balancing 

C. unequal-cost load balancing 

D. route filtering

C. unequal-cost load balancing

ENCORE4

Question 1 A local router shows an EBGP neighbor in the Active state. Which statement is true about the local router?
A. The local router has active prefix in the forwarding table firom the neighboring router
B. The local router has BGP passive mode configured for the neighboring router
C. The local router is attempting to open a TCP session with the neighboring router.
D. The local router is receiving prefixes from the neighboring router and adding them in RIB-IN

The local router is attempting to open a TCP session with the neighboring router

ENCORE4

What is the correct EBGP path attribute list, ordered from most preferred to the least preferred, that the BGP best-path algorithm uses?

A. weight, AS path, local preference, MED
B. weight, local preference, AS path, MED
C. local preference, weight, AS path, MED
D. local preference, weight, MED, AS path

B. weight, local preference, AS path, MED

ENCORE4

Which PAgP mode combination prevents an Etherchannel from forming?
A. auto/auto
B. desirable/desirable
C. auto/desirable
D. desirabl

A. auto/auto

ENCORE4

Refer to the exhibit. A port channel is configured between SW2 and SW3. SW2 is not running Cisco operating system. When all physical connections are mode, the port channel does not establish. Based on the configuration excerpt of SW3, what is the cause of the problem

A. The port channel on SW2 is using an incompatible protocol

B. The port-channel trunk is not allowing the native VLAN 

C. The port-channel should be set to auto 

D. The port-channel interface lead balance should be set to src-mac

A. The port channel on SW2 is using an incompatible protocol

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