640-911 Exam - Introducing Cisco Data Center Networking - DCICN

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Q1. Which network topology is most closely associated with classical CSMA/CD? 

A. bus 

B. token passing bus 

C. star 

D. extended star 

E. ring 

Answer: A

Q2. On a new Cisco Nexus switch, you receive an error message when you attempt to create an SVI. What is the first command you must use to create the SVI? 

A. interface vlan (vlan_id) 

B. vlan (vlan_id) 

C. feature svi 

D. interface routed 

Answer: C

Q3. Which device forwards data based on the destination IP address? 

A. repeater 

B. bridge 

C. switch 

D. router 

E. hub 

Answer: D

Q4. What is the acronym expansion of the UDLD feature of Cisco Nexus Operating System? 

A. UniDirectional Link Detection 

B. Unified Data Link Distribution 

C. Unified Data Loss Detection 

D. Unified Directional Link Distribution 

E. Unidirectional Data Loss Detection 

Answer: A

Q5. What are two default user roles in Cisco Nexus Operating System? (Choose two.) 

A. Admin 

B. Network Operator 

C. Operator 

D. Storage Operator 

E. Root 

F. System Manager 

Answer: AC

Q6. Which two layers of the OSI model relate to the transmission of bits over the wire and packet forwarding based on destination IP address? (Choose two.) 

A. 1 

B. 2 

C. 3 

D. 4 

E. 5 

Answer: AC

Q7. Which two options describe services that are provided by UDP? (Choose two.) 

A. session multiplexing 

B. segmentation 

C. connection-oriented 

D. reliable packet delivery 

E. best-effort packet delivery 

Answer: AE

Q8. What is the function of the Tab key on the Cisco Nexus Operating System command-line interface? 

A. redisplays the current command line 

B. deletes all characters from the cursor to the end of the command line 

C. clears the terminal screen 

D. completes a partially entered command if enough characters are present 

E. moves the cursor one word to the right 

Answer: D

Q9. What is the subnet mask for the network 172.16.0.0/21? 

A. 255.255.0.0 

B. 255.255.255.240 

C. 255.255.248.0 

D. 255.255.255.248 

E. 255.255.248.240 

F. 255.255.255.0 

Answer: C

Q10. Which layer of the OSI model is associated with Token Ring Media Access Control? 

A. datagram 

B. routing 

C. network 

D. data link 

E. transport 

F. transmission 

G. session 

Answer: D