# ICT CQ-Barishal Board-2019

প্রশ্ন ·সময় ২ ঘণ্টা ৩৫ মিনিট

1. Mr. Didar sends official letters of his office as attachment through e-mail to the recipients. Co-workers of that office do video-chat through mobile phones of WCDMA standard.

BB 19
ব্যাখ্যা আনলক করতে চর্চা প্রিমিয়াম এ আপগ্রেড করো

2. ICT teacher laught the Number System in the class. $A$ student replicd $(375)_{10}$ when he was asked for his roll number. The teacher showed how to convert the student's roll number into a number system that consists of 08 prime symbols. After knowing that previously the roll number of that student was $(17 \mathrm{C})_{16}$ teacher commented that the result of his last examination was good.

BB 19
ব্যাখ্যা আনলক করতে চর্চা প্রিমিয়াম এ আপগ্রেড করো

3. In a database of a company, there are two tables as follows:

Prod-id

Product Name

Unit Price

50003

H.D.D

4,000 /=

50002

Key Board

200/=

50005

Mouse

100/=

50004

Monitor

8,000/=

50001

Printer

3,000/=

Product

Emp-id

Sale Amount

Prod-id

10001

6,000/=

50001

10002

9,000/=

50001

10003

500/=

50005

10004

1,000/=

50005

10005

800/=

50002

Sale

For searching information from the 'Product' table, the owner of the company arranged the data based on Ist field by a procedure in such a way that there will be no need to repeat the arrangement if new product is added.

BB 19
ব্যাখ্যা আনলক করতে চর্চা প্রিমিয়াম এ আপগ্রেড করো

4. Dr. Khalil is researching a technology on the invention of hybrid seeds to meet the shortage of food in the country. His assistant tries to collect research related information from the computer without taking permission.

BB 19
ব্যাখ্যা আনলক করতে চর্চা প্রিমিয়াম এ আপগ্রেড করো

5. Mr. Arif established a network among various computers in the multi-storied building by a media made of multicomponent glass. He also decided to use a communication system of IEEE 802.16 standard in order to share the information with another building situated 10 k.m. away.

BB 19
ব্যাখ্যা আনলক করতে চর্চা প্রিমিয়াম এ আপগ্রেড করো