Name |
---|
Anu |
Marry |
Rajeev |
Mayank |
(a) Select employee from name
(b) Select name
(c) Select name from employee
(d) Select employee
(e) Select Anu from Name
Q2. Multiplexing technique that shifts each signal to a different carrier frequency:
(a) FDM
(b) TDM
(c) CSMA
(d) Both a and b
(e) None of the above
Q3. A _____ is a property of the entire relation, rather than of the individual tuples in which each tuple is unique.
(a) Rows
(b) Key
(c) Attribute
(d) Fields
(e) Table
Q4. What is the size of MAC Address?
(a) 16-bits
(b) 32-bits
(c) 48-bits
(d) 64-bits
(e) 10-bits
Q5. The SQL statement SELECT SUBSTR(‘ABCDEFG’,-5,4) “Substring” FROM DUAL; prints:
(a) ABC
(b) DEFG
(c) CDEF
(d) AGEF
(e) CDEFG
Q6. What is the Demilitarized Zone?
(a) The area between firewall & connection to an external network
(b) The area between ISP to Military area
(c) A cluster of idle systems
(d) A type of Trojan
(e) It is a malware attack
Q7. What do you mean by broadcasting in Networking?
(a) It means addressing a packet to all machine
(b) It means addressing a packet to some machine
(c) It means addressing a packet to a particular machine
(d) It means addressing a packet to except a particular machine
(e) It means not addressing any packet
Q8. The communication mode that supports two-way traffic but only one direction at a time is:
(a) simplex
(b) duplex
(c) half duplex
(d) multiplex
(e) None of the above
Q9. Which of the following summation operations is performed on the bits to check an error-detecting code?
(a) Codec
(b) Coder-decoder
(c) Checksum
(d) Attenuation
(e) Multiplexer
Q10. The attribute AGE is calculated from DATE_OF_BIRTH . The attribute AGE is
(a) Single valued
(b) Multi valued
(c) Composite
(d) Derived
(e) All of the above