WGU D386 - 4.1.1 - Silbershatz - ch 19 (1 of 2)
Exam Questions and Answers
1.What is a distributed system?
A collection of loosely coupled nodes
interconnected by a communication network
A group of supercomputers located in
a single location
A single server running multiple
virtual machines
A group of computers connected by
a local network
2.What configurations can nodes in a distributed
system exist in?
Client-server or peer-to-peer configuration
Only client-server configuration
Only peer-to-peer configuration
None of the above
3.Which of the following is NOT a reason for
building distributed systems?
Reducing cost
Resource sharing
Computational speedup
Reliability
4.What is load balancing in the context of a
distributed system?
Distributing computational tasks
among various sites
The physical distribution of computers
in a network
Managing power consumption across
different nodes
None of the above
5.In the case of a node failure in a distributed
system, what is the system's general response?
, The system does not use the
services of that site and if
possible, transfers its functions
to another site
The system continues to use the
services of that site regardless
The system halts the operation of the
whole system
The system always halts because it
can't function without all nodes
6.What distinguishes local-area networks (LANs)
from wide-area networks (WANs)?
The geographical area over which
they are distributed
The number of nodes they can support
The physical size of the devices they connect
The type of data they can transmit
7.What does an Ethernet network use to send signals?
Coaxial, twisted pair, and/or
fiber optic cables
Sound waves
Satellite channels
Infrared signals
8.What is a unique feature of WiFi networks as
compared to Ethernet networks?
WiFi networks allow network
construction without using
physical cables
WiFi networks are faster than
Ethernet networks
WiFi networks can connect more
devices than Ethernet networks
WiFi networks use a different
standard from Ethernet networks
Exam Questions and Answers
1.What is a distributed system?
A collection of loosely coupled nodes
interconnected by a communication network
A group of supercomputers located in
a single location
A single server running multiple
virtual machines
A group of computers connected by
a local network
2.What configurations can nodes in a distributed
system exist in?
Client-server or peer-to-peer configuration
Only client-server configuration
Only peer-to-peer configuration
None of the above
3.Which of the following is NOT a reason for
building distributed systems?
Reducing cost
Resource sharing
Computational speedup
Reliability
4.What is load balancing in the context of a
distributed system?
Distributing computational tasks
among various sites
The physical distribution of computers
in a network
Managing power consumption across
different nodes
None of the above
5.In the case of a node failure in a distributed
system, what is the system's general response?
, The system does not use the
services of that site and if
possible, transfers its functions
to another site
The system continues to use the
services of that site regardless
The system halts the operation of the
whole system
The system always halts because it
can't function without all nodes
6.What distinguishes local-area networks (LANs)
from wide-area networks (WANs)?
The geographical area over which
they are distributed
The number of nodes they can support
The physical size of the devices they connect
The type of data they can transmit
7.What does an Ethernet network use to send signals?
Coaxial, twisted pair, and/or
fiber optic cables
Sound waves
Satellite channels
Infrared signals
8.What is a unique feature of WiFi networks as
compared to Ethernet networks?
WiFi networks allow network
construction without using
physical cables
WiFi networks are faster than
Ethernet networks
WiFi networks can connect more
devices than Ethernet networks
WiFi networks use a different
standard from Ethernet networks
