Q1. A network designer needs to submit a proposal for a company, which has just published a web portal for its clients on the internet. Such a server needs to be isolated from the internal network, placing itself in a DMZ. Faced with this need, the designer will present a proposal for a firewall with three interfaces, one for the internet network, another for the DMZ server farm and another for the internal network. What kind of topology will the designer propose?
A.Screened subnet
B. DMZ, External-Internal firewall
C. Multi-homed firewall
D. Bastion host
Correct Answer: A
Q2. A popular e-commerce company has recently received a lot of complaints from its customers. Most of the complaints are about the customers being redirected to some other website when trying to access the e-com site, leading to all their systems being compromised and corrupted. Upon investigation, the network admin of the firm discovered that some adversary had manipulated the company's IP address in the domain name server's cache. What is such an attack called?
A.DNS Poisoning
B. DNS Application
C. DNS Attacked by DDoS
D. DNS Hijacking
Correct Answer: A
Q3. Arman transferred some money to his friend's account using a net banking service. After a few hours, his friend informed him that he hadn't received the money yet. Arman logged on to the bank's website to investigate and discovered that the amount had been transferred to an unknown account instead. The bank, upon receiving Arman's complaint, discovered that someone had established a station between Arman's and the bank server's communication system. The station intercepted the communication and inserted another account number replacing his friend's account number. What is such an attack called?
A.Privilege Escalation
B. DNS Poisoning
C. Man-in-the-Middle Attack
D. DNS Cache Poisoning
Correct Answer: C
Q4. Which antenna's characteristic refer to the calculation of radiated in a particular direction. It is generally the ratio of radiation intensity in a given direction to the average radiation intensity?
A.Radiation pattern
B. Polarization
C. Directivity
D. Typical gain
Correct Answer: C
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