Download PART1 1 Marks: 1 Inheritance is the process of: Choose one answer

PART1
1
Marks: 1
Inheritance is the process of:
Choose one answer.
a. using classes in the established standard Java Language library.
b. using features from an existing class.
c. combining data and the methods, which process the data, inside the same
module.
d. dividing a program into multiple related files for each class in the program.
e. all of the above.
Question 2
Marks: 1
How are four STM-1 signals formed to make an STM-4?
Choose one answer.
a. they are formed using byte-interleaving
b. they are formed using synochronization
c. they are formed using multiplexing
Question 3
Marks: 1
If a joint event can be represented as the outcome of n identical elementary events,
each capable of having only one of two outcomes (outcome X, say, with probability p
and outcome Y with probability q = 1 - p) then the probability, P(r), that the
outcome of the joint event will contain r occurrences of outcome X, and therefore n r occurrences of outcome Y, is given by the :
Choose one answer.
a. binomial distribution
b. P( A) + P( B) - P(AB)
c. q = 1 – p
d. normal distribution
Question 4
Marks: 1
The MTBF for a system is 116,750 hours. That means:
Choose one answer.
a. how long it will be before the first failure,
b. The average time between failures.
c. The lifetime of the system
d. The worst time between failures
Question 5
Marks: 1
_______________ is one of the Telecommunication management network (TMN)
functional blocks that will convert TMN information into a format that can be easily
understood by the user.
Choose one answer.
a. Operations system function block
b. Workstation function block
c. Reference function block
d. Network element function block
Question 6
Marks: 1
The decomposition, which is referred to as _____________ allows network designers
to start at the service layer and gradually implement the required functionality of the
services through combinations of networks and sub-networks, with the ultimate
realization of the design in network elements (equipment).
Choose one answer.
a. partitioning
b. OSI
c. layering
d. none is correct
Question 7
Marks: 1
How many discrete levels can be coded using 8 bits?
Choose one answer.
a. maximum binary representation for 8 bits can be calculated from 2n, where
n=8
b. maximum binary representation for 8 bits can be calculated from 2*n, where
n=8
c. maximum binary representation for 8 bits can be calculated from 2/n, where
n=8
Question 8
Marks: 1
The Star arrangement in the figure below shows how it is used to distribute the
timing source within a telecommunication station in SDH network. This is an example
of ___________________.
Choose one answer.
a. Intra-station synchronization
b. Inter-station synchronization
c. Ultra-station synchronization
d. Multi-station synchronization
Question 9
Marks: 1
Drop down menus in MS Windows are an example of:
Choose one answer.
a. inheritance
b. polymorphism
c. aggregation
d. all of the above
Question 10
Marks: 1
If there is only one response to each combination of current state and input signal,
then such a system is called _____________________
Choose one answer.
a. Communication system
b. Deterministic system
c. Non deterministic system
d. Object oriented system
Question 11
Marks: 1
__________ has a constant power spectral density for all frequencies as shown
below.
Choose one answer.
a. Noise
b. White noise
c. Power density
d. Frequency
Question 12
Marks: 1
A system that allows several cables to be part of the same collision domain is
Choose one answer.
a. A bridge
b. A repeater
c. A router
Question 13
Marks: 1
A Repeater is
Choose one answer.
a. A frame forwarding device inside one collision domain
b. A bit-forwarding device inside one collision domain
c. An IP packet forwarding device inside one collision domain
Question 14
Marks: 1
ISP stands for ______________.
Choose one answer.
a. International Service protocol
b. Internet Service provider
c. Internet System protocol
d. International Systems protocol
Question 15
Marks: 1
What is the most commonly used LAN technology today?
Choose one answer.
a. Ethernet
b. Fast Ethernet
c. Gigabit Ethernet
d. 10 gigabit Ethernet