The purpose of the (a)   is to translate internet domain/host names into IP addresses.

Network (a)   is the arrangement of the elements (links, nodes, etc.) of a communication network.

A central controller or hub is required in a network with a (a)   topology.

A network with a (a)   topology is characterized by a multipoint connection.

A (a)   Area Network spans beyond a single building or large campus to include multiple locations spread across a specific geographic area, or even the world.

A collection of devices connected together in one physical location, such as a building, office, or home is called a (a)   Area Network.

The expansion of the acronym WAN is (a)  

In Time Division Multiplexing, the time domain is divided into several recurrent (a)    of fixed length, one for each sub-channel.

(a)   is a technique by which the total bandwidth available in a communication medium is divided into a series of non-overlapping frequency bands, each of which is used to carry a separate signal.

(a)   is a technique used to combine and send multiple data streams over a single medium.

The multiplexing technique that can be used to transmit digital signals is (a)   .

How many slots are required in a TDM link to transmit the signal of n signal sources of the same data rate?

(a)  

Determine the transmission rate of a TDM link assuming 4000 transmitted frames per second and 8 bits in a slot.

(a)  

A (a)    is the state when, although the connection between two endpoints has been established, communication or message transfer is not realized.

The relation that holds for the transmission rate of a multiplexed path ITDMI_{\rm TDM}ITDM​ and the transmission rates of a signal source IkI_kIk​ is ITDM>∑kIkI_{\rm TDM} > \sum_k I_kITDM​>∑k​Ik​.

(a)  

The "sub-units" of a TDM slot are called (a)   .

Determine the transmission delay (in microseconds) suffered by a packet of length 32 bits on a 10 Mbps Ethernet link.

(a)  

(a)   delay originates partly from the time required to examine the header of the packet to determine the destination of the packet.

The traffic intensity in the network can be calculated by (a)   ​.

For transmission rates of 10 Mbps, 20 Mbps, 30 MBps, and 40 Mbps, the throughput is (a)   .

The number of routers between the source and destination is (a)   .

The total nodal delay is calculated as +1dproc++1dqueue++1dtrans++1dprop+1 d_{\text{proc}} + +1 d_{\text{queue}} + +1 d_{\text{trans}} + +1 d_{\text{prop}}+1dproc​++1dqueue​++1dtrans​++1dprop​.

(a)  

(a)    plays no role in transmission delay.

The expansion of the abbreviation "STP" in the context of physical media is (a)  

Access restriction, user activity recording, and data auditing are realized by the (a)   management portion of the LAN management software.

The maximal length of an STP cable is (a)   .

STP cables are characterized by a maximal data transfer rate of (a)    .

A star topology uses a central device called a (a)   .

Optical fiber cables are characterized by a maximum data transfer rate of (a)   .

The CSMA/CD method (which is an abbreviation of________ ) is used by the architecture ______.

(a)  

The types of connections that are not guided media are ____, _____.

(a)  

The number of concentric conductors in a coaxial cable is (a)   .

1. Fiber optical solutions are not characterized by being (a)  

Drawbacks of radio channels include __________ , ______________.

(a)  

A geostationary satellite is (a)   .

The principle used by most packet switches is (a)  

The total end-to-end delay introduced by the routers in sending the packet can be calculated by (a)   .

1. The methods to move data through a network of switches and links are ________ and _________.

The statement that resources required for data exchange between end systems can be negotiated and reserved until the end of the session describes (a)   .

In circuit switching, reserving resources guarantees (a)   .

In a packet switched system, resources are allocated (a)   .

The service not belonging to the application layer is (a)    .

(a)   delivery is the task of the physical layer.

In a network, the highest transmission speed is provided by (a)   .

The tasks realized by the physical layer include:

(a)  

Logical communication requests originating from the (a)   are translated into hardware-specific operations by the physical layer

The method by which multiple analog or digital signals can be combined into one signal over a shared medium is called (a)    .

Packets generated in the _______ layer are taken by the data link layer and are encapsulated into ________ for transmission.

(a)  

The sublayer of the data link layer that performs functions depending on the type of medium is called the (a)    sublayer.

A (a)    is a contiguous sequence of symbols received over a communication channel, where the first and last symbols are in error, and there are no contiguous subsequences of mmm correctly received symbols within it.

The acronym CRC stands for (a)   .

The multiple access protocols for channel access control include ______, _____ and _____.

(a)  

1. The technique where the receiver waits and does not send the control frame (acknowledgment or ACK) back to the sender immediately is called (a)  

The network protocol data unit (NPDU) is called a (a)   .

The odd one out that is not realized in the network layer is (a)   .

An IPv4 address identifies (a)   .

In a virtual circuit network, a packet is identified by (a)   .

The routing algorithms that can be used for network layer design include:

(a)  

The statement that does not apply to multi-destination routing is (a)   .

The (a)   Protocol is a network protocol that builds a loop-free logical topology for Ethernet networks.

(a)   is the network protocol of the Internet.

The (a)   layer accepts the stream into which data generated by different applications is aggregated by the transport layer.

The (a)   is an application programming interface (API) that defines how Windows network application software should access network services, especially TCP/IP.

The (a)    protocol is a message-oriented transport layer protocol that implements reliable connection setup, teardown, Explicit Congestion Notification (ECN), congestion control, and feature negotiation.

The (a)   variable represents a particular transport service user of a specified station known as a Transport Service Access Point (TSAP).

Protocols in the transport layer deal with (a)   communication.

1. The protocol that belongs to the transport layer is (a)  

Which multiple access protocol is sketched in the figure?

(a)  

The protocols used to determine who goes next on a multiaccess channel belong to the (a)   (sub)layer.

If two frames are transmitted simultaneously, they overlap in time and the resulting signal is garbled. This event is called a (a)   .

Systems in which multiple users share a common channel in a way that can lead to conflicts are known as contention systems.

(a)  

Protocols in which the desire to transmit is broadcast before the actual transmission are called (a)   .

Which protocol is described below?
"A station wanting to use the channel broadcasts its address as a binary bit string, starting with the high-order bit. All addresses are assumed to be the same length. The bits in each address position from different stations are BOOLEAN ORed together by the channel when they are sent at the same time."

(a)  

The basic idea behind (a)   is for the sender to stimulate the receiver into outputting a short frame, so stations nearby can detect this transmission and avoid transmitting for the duration of the upcoming (large) data frame.

Choose the control frames used by MACA.

(a)  

A (a)   is a physical layer device that receives, amplifies (i.e., regenerates), and retransmits signals in both directions.

(a)   is a formal document from the Internet Engineering Task Force that contains specifications and organizational notes about topics related to the internet and computer networking.

(a)   was the first wide-area packet-switched network.

The authority over interstate and international commerce in the communications field lies with the organization (a)   .

Select the device below that is NOT a network edge device. Give a short description of network edge devices.

(a)  

(a)   are a set of rules outlining how connected devices communicate across a network to exchange information easily and safely.

Two devices are said to be connected in a network if (a)   .
Answer: a process in one device can exchange information with a process in the other device

In telecommunications networks, a (a)   is either a redistribution point or a communication endpoint.

In a(n) (a)   network, all the machines on the network share the communication channel.

A typical example of a (a)   is Bluetooth.

The device that is capable of forwarding packets between networks based on the routing information placed in the packet header or trailer is called (a)   .

Which concept is described by the following sentence? "The set of protocols used in a communications network."

(a)  

(a)   occurs when a network is overrun with more data packet traffic than it can cope with.

The number of layers in the Internet protocol stack (TCP/IP model) are: (a)   .

How many layers are in the OSI reference model?

(a)  

Transport layer is implemented in (a)   .

The layer that provides delimiting and synchronization of data exchange is the (a)   layer.

The 5th layer in the OSI model is the (a)   .

The 5th layer in the TCP/IP model is the (a)   .

Headers are (a)   as data packets move from lower layers to upper layers

OSI is short for (a)   .

The layer that links the network support layers and user support layers is called (a)   .

While employing the TCP/IP protocols, which address(es) is/are used on the internet?

(a)  

Which address belongs to the transport layer?

(a)  

(a)   layer provides services to the users.

(a)   layer decides on the transmission data rate.