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Latest Cisco CCNA SP 640-875 pdf

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640-875 SPNGN1 – Cisco: https://www.cisco.com/c/en/us/training-events/training-certifications/exams/current-list/spngn1.html

Test your Cisco CCNA SP 640-875 exam level

QUESTION 1

Which statement about 10/40/100 GigabitEthernet interface configuration on Cisco IOS XR is true? 

A. Use the negotiation auto command in interface configuration mode to enable link auto-negotiation to ensure that

devices that share a link segment are automatically configured with the highest performance. 

B. The configuration supports only full-duplex operation. 

C. The range for MTU values is 64 bytes to 1518 bytes on the interface. 

D. The interface has no flow control configuration. 

Correct Answer: B 

 

QUESTION 2

Which two statements about Packet over SONET are true? (Choose two.) 

A. POS is a Layer 2 technology that uses PPP in ATM encapsulation and SONET framing. 

B. The Layer 2 frame is encapsulated into a generic HDLC header (not Cisco proprietary HDLC) and placed into the

appropriate SONET Payload Envelope. 

C. The FCS field can be set to 16 bits on one end and 32 bits on the other end of a POS connection without causing any

connectivity issues. 

D. The Cisco POS interface supports Cisco HDLC and PPP encapsulation. 

E. POS can be used in a point-to-point or point-to-multipoint environment. 

Correct Answer: BD 

 

QUESTION 3

Which three statements about Cisco Discovery Protocol operations on a Cisco ME3400 switch are true? (Choose

three.) 

A. Cisco Discovery Protocol is enabled by default on NNI ports. 

B. Cisco Discovery Protocol is enabled by default on all NNI, ENI, and UNI ports. 

C. Cisco Discovery Protocol is disabled by default on ENI ports. 

D. Cisco Discovery Protocol is not supported on NNI or ENI ports. 

E. Cisco Discovery Protocol is not supported on UNI ports. 

Correct Answer: ACE 

 

QUESTION 4

What are two differences between WAN and LAN? (Choose two.) 

A. The customer has explicit control of their own WAN. 

B. The customer can modify the service provider route distinguishers. 

C. The customer has explicit control of their LAN. 

D. The customer is aware of the infrastructure within the WAN. 

E. WANs will differ from LANs with attributes such as latency and distance. 

Correct Answer: CE 

 

QUESTION 5

The network administrator is using a Windows PC application that is called putty.exe for remote communication to a

switch for network troubleshooting. Which two protocols could be used during this communication? (Choose two). 

A. SNMP 

B. HTTP 

C. Telnet 

D. RMON 

E. SSH 

Correct Answer: CE 

 

QUESTION 6

Which command assigns an IP address to the Loopback1 interface on a Cisco IOS Router? 

A. ip address 192.168.41.111 255.255.255.240 

B. set ip 127.0.0.1/32 

C. ip address 127.0.0.1 255.255.255.0 

D. ip address 169.254.47.81 255.255.0.0 

Correct Answer: D 

 

QUESTION 7

Which Cisco IOS XR command is involved in enabling remote access? 

A. RP/0/RSP0/CPU0:PE1(config)# router static 

B. RP/0/RSP0/CPU0:PE1(config)# line console 0 

C. RP/0/RSP0/CPU0:PE1(config)# vrf default 

D. RP/0/RSP0/CPU0:PE1(config)# telnet ipv4 server max-servers 20 

E. RP/0/RSP0/CPU0:PE1(config)# username CISCO password LAB 

Correct Answer: D 

 

QUESTION 8

In Cisco IOS XR, which three operations is Admin mode used for? (Choose three.) 

A. Secure Domain Router management 

B. Configuration-register settings 

C. Hostname configuration 

D. IOS XR software package upgrades 

E. Interface duplex settings 

F. Domain-name configuration 

Correct Answer: ABD 

 

QUESTION 9

A technician connects a Cisco ASR 9001 Router with a 40 Gigabit Ethernet modular port adapter to an older model

Cisco switch through a transceiver. The older Cisco switch has interfaces that only support up to 100-Mb half-duplex.

What should you tell the technician about this configuration? 

A. The devices are unable to communicate. 

B. On the older model Cisco switch, set the speed to “auto,” so that the devices can communicate. 

C. On the Cisco ASR 9001 Router, set the duplex and the speed to “auto,” so that the devices can communicate. 

D. Set the transceiver to half/full duplex mode so that the devices can communicate. 

Correct Answer: A 

 

QUESTION 10

What is the Cisco IOS command to export IPv6 flows to Collector 209.165.200.200/24? 

A. Switch(config)#ipv6 flow-export destination 209.165.200.200 9996 

B. Switch(config)#ip flow-export destination 209.165.200.200 9996 

C. Switch(config)#ip flow-export destination 209.165.200.200 255.255.255.0 

D. Switch(config)#ip flow-export destination fe08::0ABC:1 9996 

Correct Answer: A 

 

QUESTION 11

With a distance vector routing protocol like RIPv1, when is a route in the routing table placed in the “possibly down”

state? 

A. When a router receives an update from its neighbor router about a network in its routing table but with a worse

metric 

B. When a router receives an update from its neighbor router about a network in its routing table but with a better metric 

C. When a router receives an update from its neighbor router indicating that a previously accessible network is now

inaccessible 

D. Whenever the router receives an update from its neighbor about a newly learned network 

E. Whenever the router interface that is used to reach the remote network goes down 

Correct Answer: C 

 

QUESTION 12

Which two commands are required to enter enable mode on a console port without entering a password? (Choose

two.) 

A. Privilege 15 

B. Input SSH 

C. Line VTY 0 4 

D. No login 

E. Privilege 0 

Correct Answer: AD 

 

QUESTION 13

What two commands enable port security and allow the switch to dynamically learn the connected MAC address?

(Choose two.) 

A. switch5(config-if)#switchport port-security 

B. switch5(config)#switchport port-security 

C. switch5(config-if)#switchport port-security mac-address sticky 

D. switch5(config)#switchport port-security mac-address sticky 

E. switch5(config-if)#switchport port-security mac-address dynamic 

F. switch5(config-if)#switchport port-security mac-address auto 

Correct Answer: AC

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