CCNA 1/Module 9:

TCP/IP Protocol Suite & Network Addressing
  • Why was the Internet developed?
  • to provide a communication network that could continue to function in wartime
  • What protocol suite is used on the Internet?
  • TCP/IP
  • What do routers read to find the best route to a device?
  • IP address
  • What is the current version of IP?
  • IPv4
  • What is another name for an IP address?
  • Logical address
  • What are the 4 layers of the TCP/IP model?
  • Application
  • Transport
  • Internet
  • Network Access
  • What protocol administers the transmission of e-mail over computer networks?
  • SMTP
  • What protocol supports binary and ASCII file transfers?
  • FTP
  • Interactive Media: Application Layer
  • What are the two protocols at the Transport layer?
  • TCP
  • UDP
  • What is the main protocol of the Internet?
  • IP
  • What three operations are performed by IP?
  • ·Defines a packet and an addressing scheme
  • ·Transfers data between the Internet layer and network access layers
  • ·Routes packets to remote hosts
  • Interactive Media: Internet layer
  • Which layer is considered the host-to-network layer?
  • Network access layer
  • What model is the internet based on?
  • TCP/IP
  • What technology is assumed for both models?
  • Packet-switched
  • Interactive Media: Drag and Drop: Comparing the TCP/IP and OSI Model
  • What is a network of networks called?
  • internet
  • What is the name for the “special purpose computer” that connects networks?
  • Router
  • What layer does an IP address operate at?
  • 3
  • How many bits is an IP address?
  • 32
  • Decimal and binary conversion
  • What two things does every IP address identify?
  • Network
  • Host
  • What are three classes of IP addresses?
  • A, B, C
  • What class allows for more than 16 million hosts?
  • A
  • What address is reserved for loopback testing?
  • 127.0.0.0
  • What is a class E address used for?
  • IEEE Research
  • What class is most commonly used?
  • C
  • What number do network numbers end in?
  • 0
  • What is a packet called that is sent to all devices on a network?
  • broadcast
  • What address ends with binary 1s in the entire host part of the address?
  • broadcast
  • What organization manages IP addresses?
  • IANA
  • What two new methods were developed to solve the problem of IP addressing?
  • CIDR
  • IP v6
  • What does a router do when it receives a private IP address?
  • Drops the packet
  • What device usually performs NAT?
  • Router
  • What is it called when a network administrator takes an IP address and breaks it up into smaller networks?
  • Subnetting
  • Where does a network administrator “borrow” bits from?
  • The host field
  • What is the minimum number of bits that can be borrowed?
  • 2
  • How many bits must remain after borrowing?
  • 2
  • What two extensions to IPv4 were developed to help solve the problem of IP addressing problem?
  • Subnet masks
  • CIDR
  • How many bits are used in IPv6?
  • 128
  • What is the number of IP addresses provided by IPv6?
  • 640 sextrillion
  • What are the 2 ways IP addresses can be assigned by a network administrator?
  • Static
  • Dynamic
  • What 3 devices should always have a static IP address?
  • Router
  • Server
  • Network printers
  • What protocol finds an IP address for a device when only the MAC address is known?
  • RARP
  • What device usually supplies an IP address?
  • Router
  • How is the BOOTP database maintained?
  • The administrator must add hosts and maintain the BOOTP database
  • What does DHCP stand for?
  • Dynamic host configuration protocol
  • What is obtained with DHCP?
  • Ip/subnet mask
  • How long does a host keep an IP address?
  • Until they log off
  • On a LAN, what 2 addresses does a datagram need to forward data?
  • Destination MAC & IP
  • What tables are stored in RAM memory?
  • ARP tables
  • What are the 2 ways that devices can gather MAC addresses that they need to add to the encapsulated data?
  • monitor LAN and populate ARP table with "address pairs"
  • broadcast an ARP request
  • What does the source device report if there is no response to the ARP

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