You have a single Class C IP address and a point-to-point serial link that you want to implement VLSM on. Which subnet mask is the most efficient for this point to point link?A. 255.255.255.0B. 255.255.255.240C. 255.255.255.248D. 255.255.255.252E. 255.255

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第4题：

You work as a technician at TestKing. You are configuring a Cisco router. You want to configure the IP address on an interface.Which command should you use?（）

• A、router(config-if)#ip address 142.8.2.1 subnet mask 255.255.252.0
• B、router(config-if)#142.8.2.1 0.0.3.255
• C、router(config-if)#ip address 142.8.2.1 255.255.252.0
• D、router(config-if)#142.8.2.1 subnet mask 255.255.252.0
• E、router(config-if)#ip address 142.8.2.1 0.0.3.255
• F、router(config-if)#ip address 142.8.2.1 subnet mask /22

第5题：

You are using standalone Cisco Aironet 1400 Series Wireless Bridges for a nine-mile point-to-point wireless link between two buildings. Which distance setting should you use for the bridgeconfigured as the root？（）

• A、20 km [12.4 miles]
• B、10 km [6.2 miles]
• C、5 km [3.1 miles]
• D、25 km [15.5 miles]
• E、15 km [9.3 miles]

第6题：

You are a systems administrator and you are about to assign static IP addresses to various servers on your network. For the network 192.168.20.24/29 the router is assigned to the first usable host address, while the last usable host address goes to your Sales server. Which one of the following commands would you enter into the IP properties box of the sales server?（）

• A、IP address: 192.168.20.14 Subnet Mask: 255.255.255.248 Default Gateway:192.168.20.9
• B、IP address: 192.168.20.254 Subnet Mask: 255.255.255.0 Default Gateway:192.168.20.1
• C、IP address: 192.168.20.30 Subnet Mask 255.255.255.248 Default Gateway:192.168.20.25
• D、IP address: 192.168.20.30 Subnet Mask 255.255.255.240 Default Gateway:192.168.20.17
• E、IP address: 192.168.20.30 Subnet Mask 255.255.255.240 Default Gateway:192.168.20.25

第7题：

In the implementation of VLSM techniques on a network using a single Class C IP address,which subnet mask is the most efficient for point-to-point serial links?（）

• A、255.255.255.240
• B、255.255.255.254
• C、255.255.255.252
• D、255.255.255.0
• E、255.255.255.248

第8题：

You have a single Class C IP address and a point-to-point serial link that you want to implement VLSM on. Which subnet mask is the most efficient?（）

• A、255.255.255.0
• B、255.255.255.240
• C、255.255.255.248
• D、255.255.255.252
• E、255.255.255.254

第9题：

During a planning session， it is determined that a three node cluster （Node ’A’， Node ’B’， and Node ’C’） will meet the customer’s application needs. Node ’B’ will be a hot-standby fallover node for both Node ’A’ and Node ’C’ resource groups.  A serial network for this cluster will require which connections？（）  

• A、 A single serial network between Node ’A’ and Node ’B’ and Node ’C’
• B、 A point-to-point link between Node ’A’ and Node ’C’，and Node ’B’ and Node ’C’
• C、 A serial network between Node ’A’ and Node ’C’，and a serial network between Node ’B’ and Node ’C’
• D、 A point-to-point link between Node ’A’ and Node ’B’ Node ’B’ and Node ’C’ and Node ’A’ ad Node ’C’

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第16题：

You have a network that supports VLSM and you need to reduce IP address waste in your point to point WAN links. Which of the masks below would you use?（）

• A、/38
• B、/30
• C、/27
• D、/23
• E、/18
• F、/32

第17题：

In network that support VLSM, which network mask should be used for point-to-point WAN links in order to reduce waste of IP addresses?（）

• A、/24
• B、/30
• C、/27
• D、/26
• E、/32

第18题：

A network planning diagram shows a large internetwork with many routers. The configurations show that OSPF has been enabled on all interfaces, I P addresses correctly configured, and OSPF workinG. For which of the following cases would you expect a router to create and flood a Type 2 LSA?（）

• A、When OSPF is enabled on a LAN interface, and the router is the only router connected to the subnet.
• B、  When OSPF is enabled on a point - to -point serial link, and that router has both the higher router ID and higher interface IP address on the link.
• C、When OSPF is enabled on a Frame Relay point - to - point subinterface, has the lower RID and lower subinterfa ce IP address, and otherwise uses default OSPF configuration on the interface.
• D、When OSPF is enabled on a working LAN interface on a router, and the router has been elected BDR.
• E、None of the other answers is correct.

第19题：

In the implementation of VLSM techniques on a network using a single Class C IP address，which subnetmask is the most efficient for point-to-point serial links？（）

• A、255.255.255.240
• B、255.255.255.254
• C、255.255.255.252
• D、255.255.255.0
• E、255.255.255.248

第20题：

You are implementing a new frame relay network to provide connectivity between you offices. To do this, you set up the frame relay network using point-to-point subinterfaces.Which of the following does NOT need to be configured?（）

• A、The Frame Relay encapsulation on the physical interface.
• B、The local DLCI on each subinterface.
• C、An IP address on the physical interface.
• D、The subinterface type as point-to-point.

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