Q1. The topology of a local area network (LAN) is defined by the: 

A. Number of devices to connect. 

B. Physical and logical characteristics. 

C. Distance between workstations. 

D. Type of cable being used. 

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Q2. Which of the following services masks internal IP addresses from outside the network? 

A. DHCP 

B. WINS 

C. NAT 

D. DNS 

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Q3. When a client's DHCP-issued address expires, the client will: 

A. Select a new address and request approval from the DHCP server. 

B. Require manual configuration with a static IP address. 

C. Attempt to obtain a new address by broadcasting. 

D. Continue to use the address until it is notified to stop. 

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Q4. Which DNS record type specifies the host that is the authority for a given domain? 

A. NS 

B. MX 

C. CNAME 

D. SOA 

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Q5. For which two reasons should you use IPsec between computers? (Choose two.) 

A. Data compression 

B. Data integrity 

C. Data redundancy 

D. Data confidentiality 

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Q6. HOTSPOT 

For each of the following statements, select Yes if the statement is true. Otherwise, select No. Each correct selection is worth one point. 

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Q7. Which type of port is used to support VLAN traffic between two switches? 

A. Virtual port 

B. WAN port 

C. Trunk port 

D. LAN port 

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Q8. HOTSPOT 

You are studying for finals in the student lounge. When your laptop is connected to the wireless network, access to the Internet is slow. When you plug your laptop into a wall jack, you can no longer access the Internet at all. 

You run the ipconfig /all command. The results are shown in the following image: Use the drop-down menus to select the answer choice that completes each statement. Each correct selection is worth one point. 

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Q9. Which wireless communication problem is caused by electromagnetic waves? 

A. Fading 

B. Attenuation 

C. Interference 

D. Diffraction 

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Q10. What is the default subnet mask for a Class C Internet network? 

A. 255.255.255.252 

B. 255.255.255.240 

C. 255.255.255.192 

D. 255.255.255.0 

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