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Worksheetschapter 3 - Network & Security Overview
Total questions: 13
Worksheet time: 5mins
IP address 126.110.98.212 is classified under class
A
B
C
D
Which network topology where the last node is connected to the first node?
Bus
Ring
Star
Tree
Which network topology where cable that is used to connect to all computers is terminated at both end?
Bus
Ring
Star
Tree
How many hosts can a class C network have?
approximately 4.2 billion
approximately 16 million
65534
254
Which type of firewall operates at session layer?
Packet filter
circuit level
stateful
proxy
Which network zone is used to give organization extra protection in detecting and mitigating security breaches before they reach the internal network.
production zone
controlled zone
demilitarized zone
secured zone
Switch support _____ .
simplex
half-duplex
semi-duplex
full duplex
Which of the following is the function of a layer 2-switch?
I. learn address
II. forward and filter packets within same network
III. forward packets to another network
IV. avoid broadcast loop
I, II
I, II, III
II, III, IV
I, II, IV
Which of the following is used to group network devices and nodes logically?
switch
router
VLAN
VPN
A good way to protect your password in a database is through ____.
encryption
digital signature
message digest
authentication
Which key is used to encrypt in asymmetric encryption?
sender's public key
receiver's public key
sender's public key
receiver's private key
Which malware is mainly to demands fees to be paid?
virus
spyware
Trojan horse
ransomware
Which network attack takes control of a communication?
Identity theft
distributed attack
hijack attack
unauthorized attack
