The DOD model and protocols practice exam for Cisco CCNA certification

The Cisco CCNA certification requires that you are completely familiar with the DOD network model. CCNA certification practice exams are a great way to prepare for the Cisco CCNA certification and for jobs that will require you to install, maintain, and configure Cisco routers and switches. This free practice exam will help you to know the DOD network model well enough that you can productively apply your DOD network model knowledge to any network. The Cisco CCNA certification is an entry level certification which will equip you for the type of work that requires extensive use of the DOD network model.

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1) Which US Gov't agency created TCPIP?
  1. Dept. of Defense.
  2. Federal Communications Commission.
  3. Federal Emergency Management Agency.
  4. NASA.
 
2) The networking model created by this gov't agency has how many layers?
  1. 5.
  2. 3.
  3. 6.
  4. 7.
  5. 4.
 
3) The Host to Host layer corresponds to which OSI layer?
  1. Network.
  2. Transport.
  3. Session.
  4. Presentation.
 
4) The Internet layer corresponds to which OSI layer?
  1. Network.
  2. Transport.
  3. Session.
  4. Presentation.
 
5) The OSI session layer corresponds to which DOD layer?
  1. Host to Host
  2. Process/Application.
  3. Internet.
 
6) The OSI Data link layer corresponds to which DOD layer?
  1. Host to Host
  2. Process/Application.
  3. Internet.
  4. Network Access.
 
7) Telnet is used to serve what purpose?
  1. It is a terminal emulation protocol.
  2. To login to remote servers.
  3. Allow virtual terminal clients to access resources on a terminal server.
  4. To transfer files between hosts.
 
8) Which process/application layer protocol is considered insecure?
  1. DNS.
  2. SNMP.
  3. X-Window.
  4. TFTP.
 
9) Which Process/Application layer protocol tells a client about a filename to load into memory and execute?
  1. DHCP.
  2. Bootp.
  3. TFTP.
  4. DNS.
 
10) What is the purpose of the Host to Host layer?
  1. To manage error correction.
  2. To make transmission reliability decisions based on the data type.
  3. To manage virtual circuits.
  4. To separate the upper layer protocols from the complexities of the network.
 
11) From the perspective of a requesting host using telnet, what is the destination port? 
     
  1. 21.
  2. 23.
  3. 22.
  4. 53.
 
12) What is the purpose of a TCP SYN packet?
  1. To tell the client that a destination server host has established a connection.
  2. To tell the destination server host that a client wants to or already has synchronize(d) a connection with it.
  3. To send a port number to the destination server host.
  4. To send a port number to the client host.
 
13) Why would an application developer choose UDP over TCP?
     
  1. Error correction and acknowledgements are necessary.
  2. UDP requires more bandwidth.
  3. Reliability has not been established at an upper layer protocol.
  4. Reliability is already established at an upper layer protocol.
 
14) UDP is defined in:
     
  1. RFC 768.
  2. RFC 786.
  3. RFC 1812..
  4. RFC 2328.
 
15) The primary function of the internet layer is:
  1. Allowing the Host to Host layer to communicate with the Network Access layer.
  2. to provide a design model to use in the creation of the OSI Network layer..
  3. To provide an interface for programmers to use in order to write network "hooks" into programs.
  4. routing through the internet.
 
16) The protocol field in the IP packet header signifies what?
  1. Identifies the IP version.
  2. Identifies the routing protocol in use on the network.
  3. Identifies the upper layer protocol's port number.
  4. Identifies the frame type the packet is encapsulated in while traversing the wire.
 
17) Which two protocols operate at the internet layer?

a) ARP  b) ICMP  c) UDP  d) TCP

     
  1. C and D.
  2. A and B.
  3. B and C.
  4. A and D.
 
18) The address resolution protocol is used to:
  1. enable a host to retrieve an IP address
  2. discover the hardware address on a host matching a certain network address.
  3. discover the network address on a host matching a certain hardware address.
  4. discover gateway routers on an internetwork.
 
19) The reverse address resolution protocol is used to:
  1. enable a host to retrieve an IP address
  2. discover the hardware address on a host matching a certain network address.
  3. discover the network address on a host matching a certain hardware address.
  4. discover gateway routers on an internetwork.
 
20) Which protocol at the Internet layer is a message service provider?
     
  1. SMTP
  2. UDP
  3. ICMP
  4. Ping
 
21) Identify the arp broadcast address from the following.
  1. ff ff ff ff ff ff
  2. 00 00 00 00 00 00
  3. 00 00 00 ff ff ff
  4. 255.255.255.255
 
22) The words Sequential, Reliable, Virtual Circuit, and Connection Oriented are associated with:
  1. UDP.
  2. telnet.
  3. TCP.
  4. TFP.
 
23) The words Unsequential, Unreliable, Low Overhead, and Connectionless are associated with:
  1. UDP.
  2. telnet.
  3. TCP.
  4. TFP.
 
24) Put these network model layers in the correct order starting from the network media.
  1. Network Access, Host to Host, Internet, Process/Application.
  2. Network Access, Internet, Host to Host, Process/Application.
  3. Internet, Network Access, Host to Host, Process/Application.
  4. Network Access, Host to Host, Transport, Process/Application.
 
25) Which Process/Application layer protocol is used for file sharing between different file systems?
  1. SMB.
  2. Netbios.
  3. NFS.
  4. TFP.

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