how many questions of 640-875 examcollection?

Q1. Refer to the exhibit. 

Using a single Class C network of 192.168.1.0/24 and VLSM, which two options specify the number of subnets that are needed to support this network and what are the minimum sizes of the required subnets? (Choose two.) 

A. 4 subnets 

B. 6 subnets 

C. 8 subnets 

D. 26 subnets 

E. 28 subnets 

F. two /30 subnets + one /28 subnets + one /29 subnets 

G. four /30 subnets + two /28 subnets 

H. six /30 subnets + two /28 subnets 

I. twenty six /30 subnets 

J. twenty eight /30 subnets 

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Q2. Given the IP address of 209.168.200.155/27, which two options are the subnet that this IP address belongs to and the subnet broadcast IP address? (Choose two.) 

A. 209.168.200.64 255.255.255.224 

B. 209.168.200.96 255.255.255.224 

C. 209.168.200.128 255.255.255.224 

D. 209.168.200.95 

E. 209.168.200.127 

F. 209.168.200.159 

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Q3. Which statement about IPv6 global unicast addresses is true? 

A. The first 3 bits is 001. 

B. The first 4 bits is 0011. 

C. The first 4 bits is 1111. 

D. The first 16 bits is FE80 in hex. 

E. The first 16 bits is FF00 in hex. 

F. The first 16 bits is 2002 in hex. 

G. The first 16 bits is 3FFE in hex. 

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Q4. What is the default spanning-tree mode of an NNI port on a Cisco ME3400 switch? 

A. multiple spanning tree (mst) 

B. per-vlan rapid spanning tree (rapid-pvst) 

C. per-vlan spanning tree (pvst) 

D. IEEE 802.1D (stp) 

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Q5. When EIGRP is enabled on Cisco IOS XR, which EIGRP feature is on by default? 

A. no auto-summary 

B. stub routing 

C. unequal cost paths load-balancing 

D. no ip eigrp split-horizon 

E. eigrp authentication 

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Q6. Given the IP address 10.106.170.145 255.248.0.0, which three options are the subnet that this IP address belongs to, the host IP address range on this subnet, and the subnet broadcast IP address? 

A. subnet = 10.104.0.0/13 

B. subnet = 10.106.0.0/13 

C. subnet = 10.112.0.0/13 

D. host IP address range = 10.104.0.1 to 10.111.255.254 

E. host IP address range = 10.106.0.1 to 10.106.255.254 

F. host IP address range = 10.106.0.1 to 10.119.255.254 

G. subnet broadcast IP address = 10.106.255.255 

H. subnet broadcast IP address = 10.111.255.255 

I. subnet broadcast IP address = 10.119.255.255 

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Q7. Which Cisco IOS XR CLI command displays the running state of each line card (including the fan tray) on the Cisco ASR 9000 Series Router? 

A. RP/0/RSP0/CPU0:PE1#show platform 

B. RP/0/RSP0/CPU0:PE1(admin)#show platform 

C. RP/0/RSP0/CPU0:PE1#show hw-module fpd location all 

D. RP/0/RSP0/CPU0:PE1(admin)#show hw-module fpd location all 

E. RP/0/RSP0/CPU0:PE1#show version 

F. RP/0/RSP0/CPU0:PE1(admin)#show version 

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Q8. Which three statements about the Cisco IOS XR task-based user authorization method are true? (Choose three.) 

A. A user's association with a particular user group links that user to a particular set of task IDs. A user that is associated with a task ID can execute any operation associated with that task ID. 

B. Users can be assigned only to one user group. 

C. Every user group is associated with one or more task groups. 

D. Every task group is defined by a set of task IDs. 

E. Each user is assigned a privilege level. 

F. Each IOS XR CLI command is assigned a privilege level. 

G. A task ID maps the IOS XR command to a privilege level. 

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Q9. Refer to the exhibit. 

Given the Class C IP network of 192.168.1.0, using VLSM, which five subnets meet the requirements in the exhibit? (Choose five.) 

A. 192.168.1.0/27 

B. 192.168.1.32/27 

C. 192.168.1.48/27 

D. 192.168.1.48/28 

E. 192.168.1.64/28 

F. 192.168.1.80/28 

G. 192.168.1.80/29 

H. 192.168.1.88/30 

I. 192.168.1.96/30 

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Q10. Refer to the exhibit. 

Which layer(s) of the TCP/IP model operates end-to-end (Host A to Host B)? 

A. physical layer 

B. link layer 

C. transport and application layers 

D. link and internet (network) layers 

E. physical and link layers 

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