CIW (ucertify) Lesson 1 Quiz

Questions and Answers

Which packet element contains the OSI/RM layer information?

The header

Internet Protocol (IP) is found at which layer of the OSI/RM?

Network layer

Which of the following devices is necessary to create a WAN?

A router or a switch

The term back-end refers to:

A series of systems that fulfills requests made by a client. Signup and view all the answers

What is the term for a client that acts as an interface to a collection of servers?

Front end Signup and view all the answers

All email protocols are based on which of the following?

TCP Signup and view all the answers

Which layer of the OSI/RM is responsible for describing how protocols build up and tear down connections?

Session Signup and view all the answers

Which operating system does the majority of Web, email, FTP, and database servers run?

UNIX Signup and view all the answers

What is a client?

A system or application that requests a service from another computer. Signup and view all the answers

What is the term for an organization that maintains a gateway to the Internet and rents access to customers?

Internet Service Provider (ISP) Signup and view all the answers

Which layer of the OSI/RM is the interface to the user in a networking environment?

Application Signup and view all the answers

Which statement is true about TCP/IP?

TCP/IP is the Internet's official protocol. Signup and view all the answers

The coding (usually in SQL) necessary to create relationships in the data stored in a database is known as:

Business logic Signup and view all the answers

Which of the following is true about packets?

When a sending host creates a packet, the process begins with Layer 7 of the OSI/RM and continues through Layer 1. Signup and view all the answers

What is the function of Internet Control Message Protocol (ICMP)?

It is used for troubleshooting connectivity between systems. Signup and view all the answers

Which protocol does the Windows Server family use as the default network protocol?

TCP/IP Signup and view all the answers

Which statement accurately describes session-oriented protocols?

They require that a host establish a connection before they transfer information. Signup and view all the answers

Which of the following describes a server-based network?

A configuration of nodes, some of which are dedicated to providing resources to other hosts on the network. Signup and view all the answers

Most protocols map to which layers of the OSI/RM?

The application, transport, and network layers Signup and view all the answers

Which network topology connects network nodes through a central device, usually a hub or a switch?

Star Signup and view all the answers

Which of the following is used in packet-based networks to ensure that a packet is valid?

The Cyclical Redundancy Check (CRC) Signup and view all the answers

A network can be defined as:

Two or more connected computers that share data by way of a transport medium. Signup and view all the answers

What is another name for the original data in a packet?

Payload Signup and view all the answers

BitTorrent is a peer-to-peer (P2P) protocol that you can use to:

Download large files quickly. Signup and view all the answers

What is the name of this type of room?

Network Operations Center (NOC) Signup and view all the answers

Which of the following is a generic model used to describe network communications so that properly created packets can be sent on a network?

The OSI/RM Signup and view all the answers

What is a local area network (LAN)?

A group of computers connected within a confined geographic area. Signup and view all the answers

What is required for systems developed by various vendors to communicate with one another?

Network protocols Signup and view all the answers

What is the term for network protocols that rely on a 'best-effort' technology that sends the information, hoping that it will reach the other system?

Stateless Signup and view all the answers

Which of the following describes a network operating system (NOS)?

It manages resources on a network and offers services to one or more clients. Signup and view all the answers

What should you use to connect two networks to form a wide area network (WAN)?

A router or a switch Signup and view all the answers

Which of the following protocols is found at the transport layer of the OSI/RM?

Transmission Control Protocol (TCP) Signup and view all the answers

The ability of one computer system to communicate with another is known as:

Interoperability Signup and view all the answers

Which layer of the OSI/RM provides reliable data transfer across the transmission medium?

Data link Signup and view all the answers

Which packet element often contains techniques ensuring that errors do not occur during transmission?

The trailer Signup and view all the answers

Which statement best describes the functionality of a Voice over IP (VoIP) network?

Voice calls are sent over a packet-switched network that uses TCP/IP. Signup and view all the answers

Which of the following allows users to share files and services and is commonly used for intraoffice communication?

Local area network (LAN) Signup and view all the answers

What is the term for a command-based interface that allows a user to issue commands?

Shell Signup and view all the answers

A network topology that uses multiple paths to connect devices so that redundancies exist is called a:

Mesh topology Signup and view all the answers

Which of the following is a function of the transport layer of the OSI/RM?

End-to-end error recovery and flow control Signup and view all the answers

What is the function of the presentation layer of the OSI/RM?

It provides useful transformations on data to support a standardized application interface. Signup and view all the answers

What are the two basic types of networks?

Peer-to-peer and server-based Signup and view all the answers

Whenever you use a protocol such as TCP/IP, you must:

Attach, or bind, it to your NIC. Signup and view all the answers

What is the term for the mathematical calculation that allows the receiving computer to verify whether a packet is valid?

Cyclical redundancy check Signup and view all the answers

What is an Internet Exchange Point (IXP)?

A junction between one high-speed backbone and another. Signup and view all the answers

What is a Network Operations Center (NOC)?

A specific location from which a network is managed, monitored, and maintained. Signup and view all the answers

All networks consist of which three basic elements?

Protocols, transmission media, and network services Signup and view all the answers

Which protocol is connectionless and is often used to transfer relatively small amounts of information?

UDP Signup and view all the answers

Which layer of the OSI/RM organizes data into packets?

Network Signup and view all the answers

The ability of a device to automatically track and report the user's location and availability is known as:

Presencing Signup and view all the answers

Which of the following is true about Structured Query Language (SQL)?

It allows users to phrase queries on the front end that can be understood by the back end. Signup and view all the answers

Which of the following describes the physical layer of the OSI/RM?

It is associated with the transmission of unstructured bit streams over media. Signup and view all the answers

What is a wide area network (WAN)?

A group of computers connected over an expansive geographic area so their users can share files and services. Signup and view all the answers

A server is also known as:

The back end Signup and view all the answers

Your company collects massive amounts of data in an unstructured format that is too difficult to store using traditional relational databases. What is the most appropriate solution for storing, processing and analyzing this data?

A NoSQL Database Signup and view all the answers

Which statement accurately describes Internet Protocol (IP)?

It is responsible for providing addresses for each computer. Signup and view all the answers

Which of the following uses predefined or static routes that cannot be changed?

Non-routable protocols Signup and view all the answers

In a common three-tier computing model:

A web server contains the business logic, a web browser is responsible for presentation, and a database server contains the data. Signup and view all the answers

Which of the following is required to create a network?

Install a NIC. Signup and view all the answers

Which of the following describes a star topology network?

Network nodes are connected through a central device. Signup and view all the answers

A computing paradigm in which users are able to access software and services over the Internet instead of installing the software on their desktop PCs or mobile devices is known as:

Cloud computing. Signup and view all the answers

What is typically needed to exchange data over the public telephone network using a dial-up connection?

A modem Signup and view all the answers

What is the term for a set of technologies that enable voice to be converted into text and vice versa?

Unified communications (UC) Signup and view all the answers

Study Notes

OSI/RM Layers and Protocols

The header contains OSI/RM layer information.
Internet Protocol (IP) operates at the Network layer.
The Session layer manages how protocols establish and tear down connections.
The Application layer serves as the user interface in networking environments.
Transmission Control Protocol (TCP) is the primary protocol at the transport layer of OSI/RM.

Network Devices and Architectures

A router or a switch is essential for creating and connecting Wide Area Networks (WANs).
Local Area Networks (LANs) consist of computers within a confined geographic area for sharing data and resources.
In a server-based network, nodes dedicate resources to assist other hosts.
In star topology, network nodes connect through a central device, usually a hub or switch.

Data Handling and Management

Business logic refers to the coding necessary for establishing relationships in databases, typically in SQL.
In a packet, the original data is termed the payload.
The Cyclical Redundancy Check (CRC) ensures packet validity in packet-based networks.

Network Functionality and Services

Voice over IP (VoIP) networks allow voice calls over packet-switched TCP/IP networks.
An Internet Service Provider (ISP) maintains gateways to the internet and rents customer access.
An Internet Exchange Point (IXP) acts as a junction for high-speed backbones.

Networking Protocols and Technologies

All email protocols utilize TCP for functionality.
Stateless protocols operate on a "best-effort" basis, sending information without guaranteed delivery.
Unified communications (UC) enables the conversion of voice to text and vice versa.

Security and Operations

A Network Operations Center (NOC) manages and monitors network resources, often equipped with multiple redundant connections.
A NoSQL database is ideal for storing massive amounts of unstructured data that traditional relational databases cannot handle.

Communication Principles

Interoperability is the ability of systems from different vendors to communicate effectively.
Presencing allows devices to track and report user location and availability.

Network Basics

All networks consist of three elements: protocols, transmission media, and network services.
The network's physical layer handles the transmission of unstructured bit streams.

Miscellaneous

A computer shell is a command-based interface for user commands.
A mesh topology provides multiple paths between nodes for redundancy.
Cloud computing allows access to software and services over the internet without local installation.

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Description

Test your knowledge with the CIW (ucertify) Lesson 1 assessment. This quiz covers essential concepts such as OSI/RM layers, Internet Protocol, and networking devices. Challenge yourself with flashcards that focus on key information in computer networking.