Computer Science Network Questions - The primary contents of an IP Datagram head
ID: 3748369 • Letter: C
Question
Computer Science Network Questions -
The primary contents of an IP Datagram header are the source and destination ________________________________
The primary contents of a TCP Segment header are the source and destination ________________________________.
HTTP uses port ____
A __________ contains various information, such as the Network Addresses, Netmasks, Gateway Addresses, etc.
TCP stands for _________________.
Formal rules governing the exchange of information between devices are called ____________.
The source IP and Destination IP addresses are contained in the ________.
A hardware frame typically has three headers, the __________, __________, and the _________.
Each machine on a network is assigned a unique 32 bit number, known as a/an __________.
A __________ lists routes to different network locations and tells a machine where to go to access network resources and the internet.
The 32 bit number know as the __________ contains 0's for its leftmost bits, 1's for its rightmost bits, and is used to help split an IP address into an extended network address and a host address.
An important part of TCP known as __________ will rearrange packets in the intended order whenever they arrive at different times.
If a router is running a __________ , the routing table is broadcast automatically and the user never has to enter any static routes.
A source and destination _______ travel in the header of a TCP segment.
A source and destination __________________ travel in the header or a hardware frame.
____________ is used to find a MAC address of a destination machine when the IP address is known.
_______ is the name of the TCP/IP layer responsible for Application to Application communication.
Explanation / Answer
1. The primary contents of an IP Datagram header are the source and destination IP ADDRESS. ( An IP datagram header contains source IP address , Destination IP adress, IP version , time to live etc. An IP address is assigned to every device that is connected to a netowrk which helps for the communication netween different devices.)
2. The primary contents of a TCP Segment header are the source and destination PORT ( A TCP header contains a source and destination port each of 16 bit . The maximum header size of TCP can be up to 60 bytes. )
3. HTTP uses port 80 . ( A port number is used for the transmission of data between an application and a network. It is a logical construct that helps to identify specific applications. By default HTTP uses port 80. HTTPS (HTTP Secure) uses port 443. )
4. A ROUTING TABLE contains various information, such as the Network Addresses, Netmasks, Gateway Addresses, etc. ( A routing table is a data table which contains the information needed to forward a packet to its destination. It contains the information of Destination such as IP adress and Subnet mask , A Metric which decides the prefferable path , and the Next- hop which is the address of the next node to which the packet is to be sent. )
5. TCP stands for Transmission Control Protocol . ( It defines a standard to establish connection ad transmit the data packets over the internet. It is a transport layer protocol in the OSI layer. It helps to transmit the data by breaking large data into smaller packets and also ensures the connection to be alive untill the communication ends. )
6. Formal rules governing the exchange of information between devices are called PROTOCOL. ( A network protocol consist of rules for the communication between different devices. It includes all the constraints and requirements for establishing and ending a communication. Examples of protocols are : TCP/IP ,HTTP , SSL, SNMP, ICMP etc. )
7. The source IP and Destination IP addresses are contained in the IP HEADER. ( IP adress is assigned to every device that is connected to a netowrk. Every device in the network is identified by their IP adress. During the data transmission between different devices, the source and destination IP is contained in the IP header. The header also contains IP version , time to live , length etc )
8. A hardware frame typically has three headers. The ETHERNER HEADER , PLAYLOAD DATA , and the FRAME CHECK SEQUENCE (FCS) . ( In each ethernet frame, the first part is an Ethernet header which contains the sourde and destination MAC adress. The second layer is the Playload data, which is the actual data. And the third layer is the FCS which is the 32 bit code used for error detection in data transmission.)
9. Each machine on a network is assigned a unique 32 bit number, known as a/an IP ADDRESS. ( IP adress is assigned to every device that is connected to a netowrk. Every device in the network is identified by their IP adress. IPv4 used uses a 32-bit number as IP adress which is written in "dotted decimal" notation, and consist of two parts, the network and host address.
10. A ROUTER lists routes to different network locations and tells a machine where to go to access network resources and the internet. ( A router is a defice used to transmit the data packets between different devices and performs the traffic directing functions. It defines the suitable path for a data packet to be forwarded. The routing table which is stored in a router contains the information of Destination such as IP adress and Subnet mask , A Metric which decides the prefferable path , and the Next- hop which is the address of the next node to which the packet is to be sent.)
11. The 32 bit number know as the SUBNET MASK contains 0's for its leftmost bits, 1's for its rightmost bits, and is used to help split an IP address into an extended network address and a host address. ( An Ip adress consist of 2 parts : network address and the host address which are seperated by a subnet mask. IT contains four bytes (32 bits) and is represented using the same "dotted-decimal" notation similar to the IP address).
12. An important part of TCP known as TRANSPORT LAYER will rearrange packets in the intended order whenever they arrive at different times.( The transport layer establishes the end to end connection and it uses the sequence numbers to rearrange the data segments into the right order when they arrive out of order at the destination end. )
13. If a router is running a DYNAMIC ROUTING PROTOCOLS , the routing table is broadcast automatically and the user never has to enter any static routes. ( Dynamic routing helps to construct dynamic routing tables and dynamically discover network destinations.The need not be updated manually and the changes are automatically updated in the routing tables.)
14. A source and destination PORTS travel in the header of a TCP segment. (A port acts as an endpoint of logical connections. A TCP header contains a source and destination port each of 16 bit. The maximum header size of TCP can be up to 60 bytes. )
15. A source and destination MAC ADDRESS travel in the header or a hardware frame. ( A MAC address is the unique hardware address which is assigned to the deviced connected in a network. It helps to uniquely identifie each device on a network. The ethernet header consist of the source and destination address for transmission of data.)
16. ADDRESS RESOLUTION PROTOCOL (ARP) is used to find a MAC address of a destination machine when the IP address is known. ( ARP is the protocol used by the IP to convert the IP adress into MAC adress. When a host device need to obtain the MAC address of another host, It broadcasts the ARP request onto the TCP/IP network. The corresponding host on the network that has the matching IP address which is sent in the request replies with its MAC address.)
17. APPLICATION LAYER is the name of the TCP/IP layer responsible for Application to Application communication. ( Application layer is the seventh layer of the OSI model and this layer directly interacts with the end user. The applications involved in the communication system use this layer. This layer takes the help of all other layers below it inorder or transmit the data to the other end.)
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