Telecommunication Chapter 7-12 Final Exam

A modem and a dial-up telephone service provides data transfer rates of approximately

56,000 bits per second (56 kbps)

During the late 1960's, a branch of the U.S. government titled the ___ created one of the country's first wide area packet-switched networks.

Advanced Research Projects Agency (ARPA)

____ are the kind of network admin skill that includes knowing how to prepare a budget to justify continuing funds or to request additional funds.

Budget management skills

What device does a smartphone communicate with directly when using 5G?

Cellular antenna

______ ensures that the network does not become saturated at any one point.

Congestion control

____ is one of the success criteria of the iron triangle that answers, for example, if the product will bring a greater return than it costs?

Cost

Which of these connection types would provide the highest throughput between your on-prem network and your cloud resources?

Direct connect

A local area overview connectivity map can show how individual workstations or groups of workstations are clustered with switches, routers, and server farms.

False

Current estimates suggest that there are more than 1.5 million active and inactive websites connected to the Internet.

False

Latency, delivery rate, and failover are usually significant factors that are included at the local area level.

False

MONs are a sort of WAN implemented over satellite communication medium

False

Simulations can be used as a reference resource.

False

The JPEG encoder produces a data stream that has a much faster data rate than that of conventional CD-quality music

False

The OSI model tells us what kind of wire or what kind of connector to use to connect the pieces of a network.

False

WAN's require specialized technology designed to manage traffic across a wide variety of devices and connection types.

False

When calculating computer system benefits, you do not need to include intangible benefits.

False

Which orbit type ensures a satellite appears to remain staionary?

GEO

___ technology is the fastest option for fiber-optic cable.

Laser

In a wide area connectivity map, mobile or wireless sites are indicated by circles containing the letter ___

M

___ is a common form of audio compression.

MP3

Which of these technologies would you most likely choose for a company's WAN connections today?

Metro Ethernet

lets a router represent an entire local area network to the Internet as a single IP address

NAT

____ uses magnetic induction, as is commonly found with radio frequency ID (RFID) card readers, to perform very close proximity data transfer.

NFC

The International Organization for Standardization (ISO) created the _____ reference model in an attempt to standardize the design of communication systems and the interoperability between their components.

Open Systems Interconnection (OSI)

___ is a form of a request for information that asks for more detailed responses from the vendor that are specific to the project.

RFP

Which of these technologies could best provide network security at a branch location?

SASE

____ is one of the success criteria of the iron triangle that answers, for example, if any additional functionality will increase user satisfaction and efficiency?

Scope

____ are the computers that store network software and shared or private user files.

Servers

SIP stands for

Session Initiation Protocol

____ transmission requires the use of a very thin fiber-optic cable and a very focused light source, such as a laser.

Single-mode

___ are the two basic techniques to transmit light through a fiber-optic cable.

Single-mode and multimode

is a terminal emulation program for TCP/IP networks, such as the Internet, that allows users to log in to a remote computer.

Telnet

A WAN's infrastructure consists of a collection of nodes and interconnecting telecommunications links.

True

CDM technology falls into two categories: frequency hopping and direct sequence.

True

Data transmission speed is the number of bits per second that can be transmitted.

True

Every device connected to the Internet is assigned an IP address.

True

Existing team skills are not the only compatibility factor when considering how long it will take to migrate services from on-prem to the cloud.

True

Most wide area networks use some form of Dijkstra's algorithm to determine a least-cost route through a network

True

Network admins' work involves repairing failed components, installing new applications and updating the existing ones, keeping the system's existing users up-to-date, and looking for new ways to improve the overall system and service level.

True

Network architectures are cohesive layers of protocols defining a set of communication services.

True

Not all analysis and design projects require all three network connectivity maps.

True

Puppet is a configuration management tool similar to Chef.

True

Setting up a benchmark test can be quite time- consuming

True

The TCP/IP protocol suite does not have rigidly defined layers as the OSI model does.

True

The first 4 bits of an IP package indicate the protocol version.

True

The streamlining and built-in repetition of the application lifecycle, along with the increased collaboration between the teams working on each app, has come to be known as DevOps.

True

To communicate with the Internet using a dial-up modem user's computer must connect to another computer that is already communication with the Internet

True

USB is a digital interface that uses a standardized connector (plug) for all serial and parallel type devices.

True

WAN's can cover large geographic distances, including the entire Earth.

True

Wide area networks share a few characteristics with local area networks

True

ZigBee is a form of wireless technology often used for embedded devices.

True

the Internet can transfer conventional data and voice data.

True

the term "feasible" has several meanings when it's applied ot computer-based projects.

True

____ systems transmit data over a wide range of frequencies rather than limiting transmissions to a narrow, fixed band of frequencies.

Ultra-wideband

____ systems are good at sending low-speed signals over short to medium distances.

ZigBee

It is called the 3-2-1 rule when you do three copies, store on two different kinds of media, and with one copy stored in

a location geographically separate from the original data

Statistical time-division multiplexing is sometimes called ___ time-division multiplexing.

asynchronous

In a(n) ___________ system, a user at a microcomputer, or client machine, issues a request for some form of data or service.

client/server

SEO is an integral part of

digital marketing

The growing trend in ISP offerings is to provide ____ closer and closer to the customer's location.

fiber

LC, ST, SC, and MTRJ are connector types for ____ cables.

fiber-optic

Change _____ consists of carefully defined processes to evaluate the need for a change, the cost of the change, a plan for making the change with minimal disruption, and a backup plan if the change does not work as expected.

management

The ____ includes the time needed to bring the system back up to normal operation.

mean time to repair

RTSP is a protocol used for

media streaming

A wide area network connects its workstations through the use of a ___ design and requires routing to transfer data across the network.

mesh

Connecting two wide area networks requires devices such as high-speed

routers

In the https://www.cengage.com/student URL what is the detailed path?

student

A(n) ___ connection is one in which the transfer speeds to download and upload are equal.

symmetric

A ____ is a key-value pair that attaches a customized label to cloud resources.

tag

The protocol that resides at the ___ layer in the TCP/IP protocol suite is called Internet Protocol (IP)

transport