EXAM STUDY MATERIALS 8/7/2024 11:29 AM
The Bits and Bytes of Computer Networking
- Week 2. Exam Questions With Correct
Answers
What does the IP (IPv4) packet header consist of? - answer✔✔The IPv4 packet header consists
of 14 fields, of which 13 are required. The 14th field is optional and aptly named: options.
What can represent all decimal numbers from 0 to 255? - answer✔✔- 8 bits of data or a single
octet
Which company owns every single IP that has the number 9 as the first octet? - answer✔✔- IBM
What do IP addresses belong to? - answer✔✔It's important to call out that IP addresses belong to
the networks, not the devices attached to those networks.
Many modern networks you can connect a new device and an IP address will be assigned to it
automatically through a technology known as ________________________ . - answer✔✔-
dynamic host configuration protocol
An IP address assigned via dynamic host configuration protocol are known as
_____________________________________. - answer✔✔- a dynamic IP address
The exact opposite of a dynamic IP address is known as? - answer✔✔The opposite of a dynamic
IP address is known as a static IP address, and this must be configured on a node manually.
Who are static IP addresses reserved for? - answer✔✔In most cases, static IP addresses are
reserved for servers and network devices.
Who are dynamic IP addresses are reserved for? - answer✔✔In most cases, dynamic IP
addresses are reserved for clients.
What is the specific name of the data packets at the Ethernet layer? - answer✔✔The data packets
at the Ethernet layer have a specific name, it is Ethernet frames.
What is a Flag Field used for? - answer✔✔The flag field is used to indicate if a datagram is
allowed to be fragmented, or to indicate that the datagram has already been fragmented.
, EXAM STUDY MATERIALS 8/7/2024 11:29 AM
What is the Total Length Field used for? - answer✔✔It's used to indicate the total length of the
IP datagram it's attached to.
What is Service Type Field? - answer✔✔These eight bits can be used to specify details about
quality of service or QoS technologies.
What is Header Length Field? - answer✔✔This is almost always 20 bytes in length when dealing
with IPv4.
What is an IP datagram? - answer✔✔An IP datagram is a highly structured series of fields that
are strictly defined.
What is the difference between an IP datagram and an Ethernet frame header? - answer✔✔An IP
datagram header contains a lot more data than an Ethernet frame header.
What is similar between an IP datagram and an Ethernet frame header? - answer✔✔Just like any
Ethernet frame, an IP datagram is a highly structured series of fields that are strictly defined.
What is the most common version of IP? - answer✔✔The most common version of IP is version
four or IPv4.
It is also a four bit field that declares how long the entire header is.
It is almost always 20 bytes in length when dealing with IPv4.
What is an Identification Field? - answer✔✔An identification field is a 16-bit number that's used
to group messages together.
What is the maximum size of a single datagram and the largest number you can represent with
16 bits? - answer✔✔The Total Length field is 16 bits, and this field indicates the size of an
individual datagram.
The maximum size of a single datagram is the largest number you can represent with 16 bits:
65,535.
If the total amount of data that needs to be sent is larger than what can fit in a single datagram
what does the IP layer need to do? - answer✔✔The IP layer needs to split this data up into many
individual packets.
What is the Time to Live (TTL) Field? - answer✔✔This field is an 8-bit field that indicates how
many routers hops a datagram can traverse before it's thrown away.
IP header consists of a field called as Time to live field. This value indicates how long a packet
can survive.
What is the Protocol Field? - answer✔✔This is another 8-bit field that contains data about what
transport layer protocol is being used.
The Bits and Bytes of Computer Networking
- Week 2. Exam Questions With Correct
Answers
What does the IP (IPv4) packet header consist of? - answer✔✔The IPv4 packet header consists
of 14 fields, of which 13 are required. The 14th field is optional and aptly named: options.
What can represent all decimal numbers from 0 to 255? - answer✔✔- 8 bits of data or a single
octet
Which company owns every single IP that has the number 9 as the first octet? - answer✔✔- IBM
What do IP addresses belong to? - answer✔✔It's important to call out that IP addresses belong to
the networks, not the devices attached to those networks.
Many modern networks you can connect a new device and an IP address will be assigned to it
automatically through a technology known as ________________________ . - answer✔✔-
dynamic host configuration protocol
An IP address assigned via dynamic host configuration protocol are known as
_____________________________________. - answer✔✔- a dynamic IP address
The exact opposite of a dynamic IP address is known as? - answer✔✔The opposite of a dynamic
IP address is known as a static IP address, and this must be configured on a node manually.
Who are static IP addresses reserved for? - answer✔✔In most cases, static IP addresses are
reserved for servers and network devices.
Who are dynamic IP addresses are reserved for? - answer✔✔In most cases, dynamic IP
addresses are reserved for clients.
What is the specific name of the data packets at the Ethernet layer? - answer✔✔The data packets
at the Ethernet layer have a specific name, it is Ethernet frames.
What is a Flag Field used for? - answer✔✔The flag field is used to indicate if a datagram is
allowed to be fragmented, or to indicate that the datagram has already been fragmented.
, EXAM STUDY MATERIALS 8/7/2024 11:29 AM
What is the Total Length Field used for? - answer✔✔It's used to indicate the total length of the
IP datagram it's attached to.
What is Service Type Field? - answer✔✔These eight bits can be used to specify details about
quality of service or QoS technologies.
What is Header Length Field? - answer✔✔This is almost always 20 bytes in length when dealing
with IPv4.
What is an IP datagram? - answer✔✔An IP datagram is a highly structured series of fields that
are strictly defined.
What is the difference between an IP datagram and an Ethernet frame header? - answer✔✔An IP
datagram header contains a lot more data than an Ethernet frame header.
What is similar between an IP datagram and an Ethernet frame header? - answer✔✔Just like any
Ethernet frame, an IP datagram is a highly structured series of fields that are strictly defined.
What is the most common version of IP? - answer✔✔The most common version of IP is version
four or IPv4.
It is also a four bit field that declares how long the entire header is.
It is almost always 20 bytes in length when dealing with IPv4.
What is an Identification Field? - answer✔✔An identification field is a 16-bit number that's used
to group messages together.
What is the maximum size of a single datagram and the largest number you can represent with
16 bits? - answer✔✔The Total Length field is 16 bits, and this field indicates the size of an
individual datagram.
The maximum size of a single datagram is the largest number you can represent with 16 bits:
65,535.
If the total amount of data that needs to be sent is larger than what can fit in a single datagram
what does the IP layer need to do? - answer✔✔The IP layer needs to split this data up into many
individual packets.
What is the Time to Live (TTL) Field? - answer✔✔This field is an 8-bit field that indicates how
many routers hops a datagram can traverse before it's thrown away.
IP header consists of a field called as Time to live field. This value indicates how long a packet
can survive.
What is the Protocol Field? - answer✔✔This is another 8-bit field that contains data about what
transport layer protocol is being used.
