L1.5

In the OSI, which layer is responsible for a reliable connection?

• Transport layer

• Application layer

• Network layer

• Session layer

• Data Link layer

Given a binary subnet mask of 11111111.11111111.11111111.00000000.

What is the equivalent decimal value?

• 255.255.255.0

• 255.255.255.128

• 255.255.128.0

• 255.255.252.0

________ is the layer of the ISO Open Systems Interconnection (OSI) model that controls the dialogues (connections) between computers.

• Transport layer

• Application layer

• Network layer

• Session layer

• Data link layer

_________ is a unique 48-bit hardware numbers of computers, which are embedded into a network card (known as Network Interface Card) during the time of manufacturing..

• Network address

• Broadcast address

• Subnet mask

• MAC address

DNS, HTTP, SSH, FTP are some examples of which OSI layer?

• Transport layer

• Application layer

• Network layer

• Session layer

• Data link layer

In the OSI model, which layer is concerned with local delivery of frames between devices on the same LAN. Data-link frames, as these protocol data units are called, do not cross the boundaries of a local network.

• Transport layer

• Application layer

• Network layer

• Session layer

• Data link layer

It uses a three-way handshake to establish a reliable connection.

• IP

• ICMP

• TCP

• UDP

In which OSI layer the term “Frames” is used?

• Transport layer

• Application layer

• Data link layer

• Session layer

______ is a special kind of static route that is used to route packets not found in the routing table.

• Floating route

• Default route

• Connected network

• Next hop

Convert 172.16.30.5 to binary

• 10101100.00010000 .00011110.00000111

• 10101100.00010000 .00011110.00000101

• 10101100.00010000 .00011100.00000101

• 10001100.00010000.00011110 .00000101