Font size
WorksheetsData Communication
Total questions: 27
Worksheet time: 27mins
The term telecommunication includes
Telephony
face to face communication
Telegraphy
Television
Tele is Greek word for “far”
False
True
The fundamental characteristics of data communication are
Delivery
Accuracy
Timeliness
Performance
Jitter
Which of the following is NOT a component of data communication?
Message
Sender
Protocol
Router
In which mode the entire capacity of the channel is used to send data in one direction?
في أي وضع يتم استخدام السعة الكاملة للقناة لإرسال البيانات في اتجاه واحد؟
Half Duplex
Semi Duplex
Simplex
Full Duplex
Which are the network types?
Any point
Point to point
Multipoint
Single point
What is data communication?
Transfer of data from one point to the next.
Transfer of electronic data from one point to the next over a communication medium.
sending information
none of the above
Types of communication media
Twisted and coaxial cables
duplex
Bluetooth
wired and wireless
This is the process of using communication facilities such as the telephone and microwave relays to send data over a far distance without changing it.
هذه هي عملية استخدام مرافق الاتصال مثل الهاتف وأجهزة الإرسال الميكروويف لإرسال البيانات على مسافة بعيدة دون تغييرها.
wireless communication
Telecommunication
Data communication
wired communication
collection of two or more computers joined together through communication media, to share information is?
Computer network
Wired network
half duplex
full duplex
Which network connects computers within a large geographical area?
أي شبكة تربط أجهزة الكمبيوتر ضمن منطقة جغرافية واسعة؟
Wide Area Network
Local Area Network
Metropolitan Area Network
None of the above
radio-waves, microwave, infrared, satellite and bluetooth are examples of which media?
wired
television
wireless
computer
Name the image shown.
network
bus topology
ring topology
star topology
Full Duplex data flow means:
data travels in both directions, but only one direction at a time.
data travels in only one direction.
- data travels in both directions at the same time.
data does not travel.
a. Facilitates the sharing of resources
d. Reduces the cost of communication
a. يسهل مشاركة الموارد
d. يقلل من تكلفة الاتصال
data communication media
network topology
data flow
advantages of using a network.
What is a protocol?
Formulation
Significations
Timing
All of the above
A company wants to connect two offices in different cities. Which transmission media would be most suitable?
تريد شركة ربط مكتبين في مدينتين مختلفتين. ما هي وسيلة النقل الأكثر ملاءمة؟
Twisted pair cable
Coaxial cable
Fiber-optic cable
Radio waves
A company wants to set up a network for real-time video conferencing. Which switching technique would be most suitable?
تريد شركة إعداد شبكة لمؤتمرات الفيديو في الوقت الحقيقي. أي تقنية تحويل ستكون الأكثر ملاءمة؟
Packet switching
Circuit switching
Message switching
Frequency switching
Which IEEE standard defines Ethernet networks?
a) IEEE 802.3
b) IEEE 802.11
c) IEEE 802.15
d) IEEE 802.16
Which topology is shown?
Bus
Star
Ring
Mesh
Write the missing layer from the OSI model in the figure?
اكتب الطبقة المفقودة في الشكل؟
(a)
Encoding is the process of converting data into a specific format for efficient transmission!
True
False
A network engineer is designing a system to transmit audio signals over a long distance. Which type of signal (analog or digital) would be more suitable, and why?
مهندس الشبكات يقوم بتصميم نظام لنقل إشارات الصوت على مسافات طويلة. أي نوع من الإشارات (تناظرية أو رقمية) سيكون أكثر ملاءمة، ولماذا؟
Analog, because it is easier to transmit over long distances.
Digital, because it is less susceptible to noise and can be easily amplified.
Analog, because it has infinite values.
Digital, because it requires less bandwidth
A signal has a frequency of 1000 Hz. What is its period?
a) 0.001 seconds
b) 0.01 seconds
c) 0.1 seconds
d) 1 second
Which of the following is a transmission impairment that occurs when a signal loses strength over distance?
أي من الخيارات التالية هو ضعف في النقل يحدث عندما تفقد الإشارة قوتها مع المسافة؟
Noise
Attenuation
Distortion
Delay
Which of the following is an example of an analog signal?
a) Text messages
b) Voice signals over a traditional telephone line
c) Binary data transmitted over a network
d) Digital images
What is the primary cause of attenuation in a signal?
a) Noise
b) Resistance in the transmission medium
c) Delay in signal propagation
d) Signal reflection
