#1
Which of the following is a characteristic of a scalable IT infrastructure?
Ability to handle increased workload by adding resources
ExplanationScalability allows adapting to higher demands by resource expansion.
#2
What does RAID stand for in the context of IT infrastructure?
Redundant Array of Independent Disks
ExplanationRAID enhances data redundancy and performance through disk array configurations.
#3
What is the purpose of a firewall in IT infrastructure?
To filter and monitor network traffic
ExplanationFirewalls enforce security policies by inspecting and controlling inbound and outbound traffic.
#4
Which of the following is an advantage of cloud computing in system design?
Reduced maintenance overhead
ExplanationCloud computing shifts infrastructure management responsibilities to service providers, lowering maintenance costs.
#5
What is the purpose of a VPN (Virtual Private Network) in IT infrastructure?
To establish a secure connection over a public network
ExplanationVPNs provide secure and private communication over insecure networks like the internet.
#6
Which of the following is NOT a type of cloud computing service model?
Network as a Service (NaaS)
ExplanationNaaS is not a standard cloud service model; examples include IaaS, PaaS, and SaaS.
#7
Which of the following is NOT a component of a typical IT infrastructure?
Database administrators
ExplanationDatabase administrators are personnel, not components, in IT infrastructure.
#8
What is the primary function of a load balancer in IT system design?
To distribute network traffic evenly across multiple servers
ExplanationLoad balancers optimize resource utilization and ensure high availability by distributing traffic.
#9
What does CDN stand for in the context of IT infrastructure?
Content Distribution Network
ExplanationCDNs enhance web performance and availability by caching content at distributed edge servers.
#10
What is the role of a proxy server in IT system design?
To act as an intermediary between clients and servers
ExplanationProxy servers facilitate network communication by relaying requests between clients and servers.
#11
What is the primary function of a DHCP server in IT infrastructure?
To assign IP addresses dynamically to devices
ExplanationDHCP servers automate IP address assignment and configuration for devices in a network.
#12
What does SAN stand for in the context of IT infrastructure?
Storage Area Network
ExplanationSANs provide high-speed storage connectivity and centralized data management.
#13
In the context of virtualization, what does VM stand for?
Virtual Machine
ExplanationVMs emulate physical computers, enabling efficient resource sharing and utilization.
#14
What is the main objective of disaster recovery planning in IT infrastructure?
To minimize downtime and data loss in case of disasters
ExplanationDisaster recovery planning ensures business continuity by implementing strategies to recover from disruptive events.
#15
What is the primary role of a DNS server in IT system design?
To translate domain names to IP addresses
ExplanationDNS servers resolve human-readable domain names to machine-readable IP addresses.
#16
What is the primary goal of network segmentation in IT infrastructure?
To reduce security risks by isolating network segments
ExplanationNetwork segmentation enhances security by isolating sensitive resources and limiting the impact of security breaches.
#17
What is the main advantage of using a CDN (Content Delivery Network) in IT infrastructure?
Decreased latency
ExplanationCDNs reduce latency and enhance user experience by delivering content from servers closer to end-users.