Chapter 6
directing data packets to destination hosts on other networks and providing end devices with a unique network identifier
What are functions that are provided by the network layer?
/27
What is the subnet mask 255.255.255.240?
The last host address on the 10.15.25.0/24 network is
10.15.25.254
A transport layer protocol that requires less overhead.
What is UDP?
TCP/IP model layer is closest to the end user
What is the application layer?
127.0.0.1
Which IPv4 address can a host use to ping the loopback interface?
169.254.1.5
What is the link-local address? APIPA
172.16
What The network portion of the address 172.16.30.5/16?
192.168.1.1:80
What is a number or set of numbers that represents a socket?
The network includes a dedicated server.
What is a client-server network?
host portion
What is the part of a an IP address that identifies a unique host?
A value, that is contained in an IPv4 header field, is decremented by each router that receives a packet
What is the time-to-live?
How many host addresses are available on the 192.168.10.128/26 network?
What is 62?
TCP 3-way handshake
What is TCP protocol a transport layer feature is used to guarantee session establishment?
nslookup
What is the command is used to manually query a DNS server to resolve a specific host name?
network portion
What is the portion of the network layer address that a router uses to forward packets?
tunneling
What is encapsulating IPv6 packets inside IPv4 packets to carry them over IPv4 network infrastructures?
How many subnets are on the 192.168.10.0/26 network?
What is 4?
connection-less protocol
What is the UPD?
It is a more efficient way to manage IP addresses than static address assignment.
What is DHCP automatic address?
Metric
What is used to determine the best route in the routing table?
::1
What is the loopback address for IPv6?
reducing the size of broadcast domains and grouping devices to improve management and security
What are two benefits of subnetting networks?
OSI layer is responsible for establishing a temporary communication session between two applications and ensuring that transmitted data can be reassembled in proper sequence
What is the transport Layer?
the domain name mapped to mail exchange servers
What type of information is contained in a DNS MX record?