The document is a worksheet for a student at Cebu Technological University assessing their understanding of key terms related to local area networks, software, and support systems. It contains definitions for 26 key terms including Active Directory, Anti-Spyware Software, Anti-Virus Software, API, Backup Software, Disk Mirroring, Domain, Network Server, OS, Peer-to-Peer Network, Remote Access Software, Server Appliance, Site License, Spam, Spyware, Thin Client, and UPS. The student is asked to provide the definitions of these terms based on the materials and tools provided.
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1. INS Form 8A
Oct. 19, 2009
Revision: 1
Republic of the Philippines
CEBU TECHNOLOGICAL UNIVERSITY
Naga/ San Fernando Extension Campus
City of Naga, Cebu, Philippines
http://www.ctu.edu.ph email: information@ctu.edu.ph
COLLEGE OF TECHNOLOGY
ICT Department
Data Communications and Networking Technology
Worksheet No. 8 Local Area Networks: Software and Support Systems
Student Name DALAGA,ABEQUIL R. ID # 1144843
Objective : Given the materials, tools and equipment, at the end of the lecture and
discussion the student must be able to:
1. Familiarize with important key terms.
2. Grasp the scope and intent of the topic.
3. Review the content of the topic and assess mastery of concepts.
Materials :
• Information sheet (Chapter 8 of Data Comm. and Computer Networks by White, C.)
• Glossary
• Chapter 8 powerpoint
• Bond paper
• Ballpen
• Worksheet
Tools : None
Equipment : Personal Computer
Procedures :
A. Using the glossary, give the meaning of the following key terms:
1. ACTIVE DIRECTORY
-AD is central repository for all
objects that make up the enterprise:
domains, organizational units, users,
groups, computers, printers, etc.
– Roughly based on X.500
spec, creates a hierarchical tree
2. ANTI-SPAM
SOFTWARE
- The phrase anti spam (or anti-
spam)Refers to any
software,hardware or process
that is used to combat the
proliferation ofspam or to keep
spam from entering a system.
For example, aBayesian filter is
an anti spam software
application, and the use ofopt-in
e-mail is an anti spam process.
3. ANTI-SPYWARE
SOFTWARE
- Spyware is software that aims to
gather information about a person or
organization without their knowledge
and that may send such information
to another entity without the
consumer's consent, or that asserts
control over a computer without the
consumer's knowledge.
"Spyware" is mostly classified into
four types: system monitors, trojans,
adware, and tracking cookies.[2]
Spyware is mostly used for the
purposes of tracking and storing
Internet users' movements on the
Web and serving up pop-up ads to
Internet users.
4. ANTI-VIRUS
SOFTWARE
- Antivirus or anti-virus software
(often abbreviated as AV),
sometimes known as anti-malware
software, is computer software used
to prevent, detect and remove
malicious software.
Antivirus software was originally
developed to detect and remove
computer viruses, hence the name.
However, with the proliferation of
other kinds of malware, antivirus
software started to provide
2. INS Form 8A
Oct. 19, 2009
Revision: 1
Republic of the Philippines
CEBU TECHNOLOGICAL UNIVERSITY
Naga/ San Fernando Extension Campus
City of Naga, Cebu, Philippines
http://www.ctu.edu.ph email: information@ctu.edu.ph
COLLEGE OF TECHNOLOGY
ICT Department
Data Communications and Networking Technology
protection from other computer
threats. In particular, modern
antivirus software can protect from:
malicious Browser Helper Objects
(BHOs), browser
hijackers,ransomware, keyloggers,
backdoors, rootkits, trojan horses,
worms, malicious LSPs, dialers,
fraudtools, adware andspyware.
5. API
- Short for application programming
interface, API is a set of routines,
protocols, and tools for building
software applications. APIs allow
programmers easier entry into
another company's program or
service. For example, large
companies and communities such
as Facebook and Twitter use APIs to
allow programmers or website
developers easier access to their
services and members.
6. BACKUP SOFTWARE
- Backup software are computer
programs used to perform backup;
they create supplementary exact
copies of files, databases or entire
computers. These programs may
later use the supplementary copies
to restore the original contents in the
event of data loss.
7. DISK MIRRORING
- In data storage, disk mirroring is
the replication of logical disk
volumes onto separate physical hard
disks in real time to ensure
continuous availability. It is most
commonly used in RAID 1. A
mirrored volume is a complete
logical representation of separate
volume copies.
8. DOMAIN
- When referring to an Internet
address or name a domain or
domain name is the location of a
website.
9. INTERNET SOFTWARE
-
10. LICENSING
AGREEMENT
- A licensing agreement is a legal
contract between two parties, known
as the licensor and the licensee. In a
typical licensing agreement, the
licensor grants the licensee the right
to produce and sell goods, apply a
brand name or trademark, or use
patented technology owned by the
licensor.
11. MEDIA CONVERTERS
-, in the context of network
hardware, is a cost-effective and
flexible device intended to
implement and optimize fiber links in
every kind of network. Among media
converters, the most often used type
is a device that works as a
transceiver, which converts the
electrical signal utilized in copper
unshielded twisted pair (UTP)
network cabling to light waves used
for fiber optic cabling. It is essential
to have the fiber optic connectivity if
the distance between two network
devices is greater than the copper
cabling's transmission distance.
12. NOS
- Short for network operating
system, NOS is the software that
allows multiple computers to
communicate, share files and
hardware devices with one another.
Some examples of network
operating systems include Novell
NetWare, MicrosoftWindows NT,
Microsoft Windows 2000, Microsoft
Windows XP, Sun Solaris, Linux,
etc.
13. NETWORK SERVER
- A server is a computer program or
a machine that waits for requests
from other machines or software
(clients) and responds to them. A
server typically processes data.[a]
The purpose of a server is to share
data or hardware and software
resources among clients. This
architecture is called the client–
server model. The clients may run
on the same computer or may
connect to the server over a
network.[1]Typical computing
servers are database servers, file
servers, mail servers, print servers,
web servers, game servers, and
application servers.
14. OS
- An operating system or OS is a
software on the hard drive that
enables the computer hardware to
communicate and operate with the
3. INS Form 8A
Oct. 19, 2009
Revision: 1
Republic of the Philippines
CEBU TECHNOLOGICAL UNIVERSITY
Naga/ San Fernando Extension Campus
City of Naga, Cebu, Philippines
http://www.ctu.edu.ph email: information@ctu.edu.ph
COLLEGE OF TECHNOLOGY
ICT Department
Data Communications and Networking Technology
computer software. Without a
computer operating system, a
computer and software programs
would be useless.
15. PEER TO PEER
NETWORK
- Alternatively referred to as a P2P
network, a peer-to-peer network is a
network that does not have a central
computer or dedicated server; in
other words, all computers are
independent. This network is what
you would most likely find in home
networks or small networks
comprised of a dozen or less
computers.
16. REMOTE ACCESS
SOFTWARE
- The ability to log onto a network
from a distant location. Generally,
this implies a computer, a modem,
and some remote access software to
connect to the network.
17. SERVER APPLIANCE
- Also called an appliance server, a
specialized server that is designed
for ease of installation and
maintenance. Server appliances
have their hardware and software
bundled in the product, so all
applications are pre-installed.
18. SERVER BLADE
- Also called an appliance server, a
specialized server that is designed
for ease of installation and
maintenance. Server appliances
have their hardware and software
bundled in the product, so all
applications are pre-installed.
19. SITE LICENSE
- A type of software licensing
agreement that grants the purchaser
permission to use the software on a
network on a single site, with an
unlimited number of end users.
Usually this type of license allows
you to copy and use the software on
multiple computers at one site and is
more expensive than purchasing a
single copy but less expensive than
purchasing a copy for each
computer at the site.
20. SNIFFERS
- A program and/or device that
monitors data traveling over a
network. Sniffers can be used both
for legitimatenetwork management
functions and for stealing information
off a network.
21. SPAM
- Alternatively referred to as UCE
(Unsolicited Commercial Email) and
bulk e-mail, spam, not to be
confused with the meat product, is
slang commonly used to describe
junk e-mail on the Internet. Spam is
e-mail sent to thousands and
sometimes millions of people without
prior approval, promoting a particular
product, service or a scam to get
other people's money.
22. SPYWARE
- Software that covertly gathers
user information through the
user's Internet connection without
his or her knowledge, usually for
advertising purposes.
23. STRIPPING
- In general, when referring to data,
strip is the process of removing one
or morecharacters from a file or a
collection of files. For example,
someone could do a search and
replace for a particular word and
replace it with nothing to strip a
document of that word.
24. THIN CLIENT
- A thin client is a lightweight
computer that is purpose built for
remoting into a server (typically
desktop virtualization resources). It
depends heavily on another
computer (its server) to fulfill its
computational roles. This is different
from the traditional desktop PC (fat
client), which is a computer
designed to take on these roles by
itself. The specific roles assumed by
the server may vary, from hosting a
shared set of virtualized
applications, a shared desktop stack
or virtual desktop, to data processing
and file storage on the client or
users behalf.
25. UNINSTALL
SOFTWARE
- To remove an application from a
computer. Uninstalling removes all
files that were added to the
4. INS Form 8A
Oct. 19, 2009
Revision: 1
Republic of the Philippines
CEBU TECHNOLOGICAL UNIVERSITY
Naga/ San Fernando Extension Campus
City of Naga, Cebu, Philippines
http://www.ctu.edu.ph email: information@ctu.edu.ph
COLLEGE OF TECHNOLOGY
ICT Department
Data Communications and Networking Technology
computer when the application was
initially installed.
26. UPS
- Short for Uninterruptible Power
Supply, UPS is a hardware device
that provides a backup power source
in case of a power outage
(blackout), brownout, or a surge in
power. A UPS provides enough
power for a computer(s) to shut
down properly or remain functional
during the outage. There are three
versions of the UPS: standby, on-
line and line interactive. The picture
shows an APC battery backup
power strip.
27. UTILITIES
- Smaller than an application in size,
a utility is a computer program
intended for a particular task; usually
pertaining to system resource
management. A good example is
Microsoft's Disk Cleanup utility,
which is used to delete unnecessary
files and recover disk drive space.
28. WEB SERVER
SOFTWARE
- Web servers are computers that
deliver (serves up) Web pages.
Every Web server has an IP address
and possibly a domain name.
__
29. nondeterministic protocol
30. passive device
31. PoE
32. print server
33. round robin protocol
34. shared network
35. shared segment network
36. SOHO
37. Star-wired bus local area
38. switch
39. trees
40. VLAN
41. WEP
42. Wireless LAN
5. Using the information sheet, book, and powerpoint, answer the following review
questions:
1. List the six basic functions of an operating system.
1. Manages all programs and resources
2. Handles Input/Output
3. Handles security
4. Provides memory management
5. Provides storage management
6. Communicates status of system
2. What distinguishes a multitasking operating system from a non-
multitasking operating system?
- Multitasking can allow users to "run" or execute multiple applications and processes
at the same time.
3. List the primary differences between a network operating system and an
operating system.
- Network operating system manages network servers, printers, multiple networks,
and potentially large numbers of local and remote users while an operating system is
usually only managing a single machine with a few users who log on locally,
although roaming profiles are becoming more prevalent.
4. What is an application program interface?
- A software module that acts as an interface between application programs
and technical entities, such as telephone switching system.
5. What are the basic functions of a network operating system?
- Support server and printer operations;
-Allow users to log on;
-User accounting procedures;
-All normal operating system functions (disk/memory/CPU/peripheral management)
-Network Security & Authentication
6. What is meant by disk mirroring?
- A technique used in RAID systems in which data is duplicated onto two drives
simultaneously in order to provide a backup for the data or simply splitting data over
multiple disk drives.
7. What is an organizational unit?
- An object in a hierachical tree structure for local area network operating system that
is composed of further objects or leaf objects.
8. What is the function of Windows’ Active Directory?
- Network directory structure for Window Server or operating system; a hierarchical
structure that stores information about all the objects and resources in a network and
makes this information available to users, network adminstrators, and application
programs.
9. What are the strengths of Unix?
- Streamlined which provides for quick operation.
-Internal code of UNIX is relatively easy to modify.
-Early versions were free and most still are.
-Runs on most any hardware.
6. -Stable and good at support large applications such as multiuser database systems
and web servers.
-Excellent security
-Network/Client Support
10.List the reasons for Linux’s popularity?
- Linux: Shares speed and stability features on UNIX and If downloaded from the
Internet, the software is free.
-You usually receive the original source code along with the compiled code for free.
-Small size of source code and ability to install on almost any device.
-Graphical User Interface
-Network Support and Integration
11.What are the disadvantages of Linux?
- MANY WINDOWS PROGRAMS WILL NOT RUN IN LINUX.
-THERE IS A SMALLER SELECTION OF PERIPHERAL HARDWARE DRIVERS
FOR LINUX.
-THERE IS A LEARNING CURVE FOR PEOPLE WHO ARE NEW TO LINUX.
12.What are the advantages and disadvantages of Mac OS X server?
- ADVANTAGES
-Provides support for secure access to Windows, Linux, and Unix and it's Open
Directory can interface with Active Directory.
-DISADVANTAGES
Price
Gaming
Fewer Software Options
13.What is the importance of a network server?
- In computer networking, a server is a computer designed to process requests
and deliver data to other (client) computers over a local network or the Internet.
Network servers typically are configured with additional processing, memory and storage
capacity to handle the load of servicing clients.
14.What different kinds of network servers are available?
-Network, Media, File, E-Mail, Web, Print, Storage, Application, Database,
Telecommunications, Telephony, and Messaging / SMS as well as others exist as:
1. Server boxes
2. Server blades
3. Server appliances.
15.What are the different levels of RAID, and what does each do?
-RAID 0: striping
-RAID 1: mirroring
-RAID 3: striping with error checking on separate disk
-RAID 5: striping with error checking stored with data
16.What are the issues often stated in a software license agreement?
1. Software installation and use—Specifies the number of computers on which a
user may legally install and use the software.
2. Network installation—Indicates if the package may be installed on a computer
network; and if so, whether additional licenses are necessary for each machine on
the network.
3. Backup copy—Informs the user if making a backup copy is acceptable.
4. Decompilation—Specifies that a user may not decompile, disassemble, or reverse
engineer the software code in an attempt to retrieve its high-level language to make
modifications to the code.
7. 5. Rental statement—States that a user is not allowed to rent or lease the software
to a third party.
6. Upgrades—If the software program is an upgrade of a previous version, informs
the user that the previous version needs to be purchased before the upgrade can be
installed.
7. Copyright—Informs the user that all documentation, images, and other materials
included in the package are copyrighted and under the protection of copyright laws.
8. Maintenance—Informs the user whether product support is included in the
purchase of the software package.
17.List the types of software license agreements.
1. Single user-single station
2. Single user-multiple station
3. Interactive user
4. Network server
5. Site
6. Corporate
7. GPL
8. Freeware
9. Shareware
10. Trial
11. Educational/Student Use
18.What are the nine most common groups of network utility software?
1. Antivirus software
2. Anti-spam software
3. Anti-spyware software
4. Backup software
5. Crash protection software
6. Network-monitoring software
7. Remote access software
8. Security assessment software
9. Uninstall software
19.What are the primary functions of an Internet Web page server?
-Web servers receive requests for web pages, retrieve the appropriate Web page,
and transmits the requested Web page back across the Internet to the browser.
20.What are the different types of hardware support devices for local area
network?
-Many types of hardware devices are necessary to support a local area network,
including hubs, switches, and routers; uninterruptible power supplies and surge
protectors; tape drives; network attached storage; printers and print servers; media
converters; workstations; and servers.
B. Based on your understanding of the topic “Local Area Networks: Software and
Support Systems”, use your own words to express briefly the main idea and
relevant details by making a recapitulation. Do not insert your own opinions or
thoughts.
ANSWER:
-the topic was all about the software and the support systems which is they given
us the definition and its function of the different software and its components.
Grading : Worksheet will be graded according to the following weights:
Areas Weights Rating
Key Terms (KT) 30%