Introduction to Internet and WWW - Set 2

1. Which is not a firewall technique ?
   1. Packet filters
   2. Application Gateways
   3. Proxy Servers
   4. Fire Proxy Service
   Show Answer

   Answer : D
   Explain: A firewall is a network security device that prevents unauthorized access to a network. It inspects incoming and outgoing traffic. Some firewall technique : Packet-filtering Firewalls, Circuit-level Gateways, Application-level Gateways (Proxy Firewalls) and Cloud Firewalls etx.
2. OSI refernce layer responsible for routing _____
   1. Physical
   2. Network
   3. Data link
   4. Transport
   Show Answer

   Answer : B
   Explain: Network layer is responsible for routing, multi node routing and I.P assign ( addressing). Data in this layer in form of Packets.
3. One format for Lan OS ?
   1. Common server
   2. Place to Place
   3. CSMA / CD
   4. Peer to Peer
   Show Answer

   Answer : D
   Explain: Peer-to-peer network operating systems allow users to share resources and files located on their computers and to access shared resources found on other computers.
4. Which is not required hardware for LAN ?
   1. NIC
   2. File server
   3. Coaxiable cable
   4. Monitor Server
   Show Answer

   Answer : D
   Explain: Server monitoring helps you access servers in real-time. By keeping track tells us the health and performance of server.But it is not need in LAN.
5. Different local area networks can be interconnected by which of the following ?
   1. hub
   2. repeater
   3. tunnel
   4. bridge
   Show Answer

   Answer : D
   Explain: A bridge in a computer network is a device used to connect multiple LANs together with a larger Local Area Network (LAN).
6. Which is not a packet switched WAN ?
   1. ATM
   2. ISDN
   3. Frame Replay
   4. X.25
   Show Answer

   Answer : B
   Explain: X.25 is the first switched WAN which was introduced in the year 1970. The frame relay standard was introduced to replace the slow X.25 standard. The ATM is referred to as a cell relay protocol. ATM is a standard used to implement a switched WAN which uses packet switching technology.
7. Which service provides dynamic IP addressing to clients ?
   1. WINS
   2. DNS
   3. DHCP
   4. PPP
   Show Answer

   Answer : C
   Explain: Dynamic Host Configuration Protocol (DHCP) is a client/server protocol that automatically provides an Internet Protocol (IP) host with its IP address.
8. Popular access method for computer network ?
   1. Bus Token
   2. Ethernet
   3. Token Ring
   4. P2P
   Show Answer

   Answer : B
   Explain: Ethernet is defined as a networking technology that includes the protocol, port, cable, and computer chip needed to plug a desktop or laptop into a local area network (LAN).
9. Which address is permitted not to use two forward slashes ?
   1. Http
   2. SMTP
   3. News address
   4. Telnet URL
   Show Answer

   Answer : D
   Explain: Telnet is a network protocol used to virtually access a computer and to provide a two-way, collaborative and text-based communication channel between two machines.
10. Netiquette is a rule related to _____
    1. Food habits
    2. Cyber habits
    3. Retailing habits
    4. Banking habits
    Show Answer

    Answer : B
    Explain: Netiquette thus describes the rules of conduct for respectful and appropriate communication on the internet.
11. The Image Map is stored in a layer below the picture is called ?
    1. Server side Image Map
    2. Pics Image Map
    3. Client side image Map
    4. None of above
    Show Answer

    Answer : A
    Explain: Image maps are of two types Client side and Server side.
12. Which is not an example of LAN Based messaging ?
    1. Domino
    2. IIS
    3. Exchange
    4. Groupwise
    Show Answer

    Answer : A
    
13. E-mails and its related data is stored on
    1. Attachment
    2. Computer hard disk
    3. Mail box
    4. Google drive
    Show Answer

    Answer : C
    Explain: A mailbox (also electronic mailbox) is the destination to which electronic mail messages are delivered.
14. MAN stands for :
    1. Man Area Network
    2. Metro Area Network
    3. Metropolitan Area Network
    4. Metropolitan Area Networking
    Show Answer

    Answer : C
    Explain: A metropolitan area network (MAN) is a computer network that connects computers within a metropolitan area, which could be a single large city, multiple cities and towns.
15. Which of the following service is used to convert domain name to ip address ?
    1. NFS
    2. SMS
    3. DNS
    4. SDN
    Show Answer

    Answer : C
    Explain: DNS servers translate requests for names into IP addresses, controlling which server an end user will reach when they type a domain name into their web browser.