Q. The term 'PC-XT' refers to
1) Personal Computer External Technology
2) Personal Computer Extended Technology
3) Personal Computer Embedded Technology
4) Personal Computer Expanded Technology
Q. Most networks employ devices for routing services. Routers work at which of the Following OSI Layers?
1) Transport
2) Network
3) Presentation
4) Session
Q. Which of the following will help you to improve your LAN security?
1) Change your passwords frequently
2) Install a firewall program
3) Use a proxy
4) All of the above
Q. Which of the following devices discriminates between multicast and unicast packets?
1) Multicast switch
2) Bicast switch
3) Bicast router
4) Mulicast Router
Q. Which of the following use routes with packet filtering rules to allow or deny access based on source address, destination address, or port number?
1) Application layer Firewall
2) Packet Filtering Firewall
3) Router enhanced firewall
4) IP enabled firewall
Q. Which of the following systems run an application layer firewall using proxy software?
1) Proxy NAT
2) Proxy client
3) Client 32
4) Proxy server
Q. A packet filtering firewall operates at which of the following OSI layer?
1) At the Application layer
2) At the Transport Layer
3) At the Network Layer
4) Both 2 and 3
Q. Which of the following are true about firewalls?
1) Filters network traffic
2) Can be either a hardware or software device
3) Follows a set of rules
4) All the above
Q. What are some of the benefits of using a firewall for your LAN?
1) Increased access to Instant Messaging
2) Stricter access control to critical resources
3) Greater security to your LAN
4) Both 2 and 3
Q. Your company receives internet access through a network or a gateway server. Which of the following devices is best suited to protect resources and subnet your LAN directly on the network server?
1) DSL modem
2) A multi-homed firewall
3) VLAN
4) A brouter that acts both as a bridge and a router
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