MCQs

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Overall MCQs for Reference

What is the main benefit of placing server infrastructure in separate geographic locations?
a. Reduced electricity usage
b. Improved fault tolerance
c. Faster internet speed
d. Easier hardware replacement
Answer: b. Improved fault toleranceliquidweb
Which term best describes a strategy of backing up data across multiple regions to protect against natural disasters?
a. Local storage
b. Geographic redundancy
c. Magnetic backup
d. Cloud bursting
Answer: b. Geographic redundancyscribd+1
In cloud computing, what is the advantage of having geographically separate data centers?
a. Lower hardware costs
b. Enhanced disaster recovery
c. Shorter software updates
d. Decreased complexity
Answer: b. Enhanced disaster recoveryscribd+1
Which network type connects servers in different cities?
a. LAN
b. PAN
c. WAN
d. MAN
Answer: c. WANtestbook+1
What does the CAP theorem state regarding distributed systems?
a. Consistency, Availability, and Partition Tolerance cannot all be achieved at once
b. Cloud, Applications, and Performance are always aligned
c. All backups must be centralized
d. None of the above
Answer: a. Consistency, Availability, and Partition Tolerance cannot all be achieved at onceliquidweb
Which redundancy configuration involves backup servers located at different locations?
a. Shared redundancy
b. Geographic redundancy
c. Logical redundancy
d. Modular redundancy
Answer: b. Geographic redundancyscribd+1
What disaster event is best mitigated by using geographically separate data centers?
a. Server overheating
b. Power supply failure
c. Regional earthquake
d. Software malware
Answer: c. Regional earthquakeliquidweb
In the context of data centers, which practice ensures continuous service during a local power failure?
a. Automatic updates
b. Remote server mirroring
c. Data compression
d. Network throttling
Answer: b. Remote server mirroringscribd+1
Which type of backup server is powered on and synchronized with the main server but not actively serving?
a. Hot standby
b. Warm standby
c. Cold standby
d. Incremental standby
Answer: b. Warm standbyliquidweb
Which technology allows immediate user failover between distant locations?
a. Cloud burrowing
b. Load balancing
c. WAN optimization
d. Hot standby
Answer: d. Hot standbyliquidweb
Which networking option offers the broadest coverage between continents?
a. LAN
b. VLAN
c. WAN
d. CAN
Answer: c. WANexamradar+1
What is a primary reason businesses use geographically separate server locations?
a. Minimizing licensing costs
b. Ensuring business continuity
c. Quick hardware repairs
d. Reducing training needs
Answer: b. Ensuring business continuityliquidweb
What kind of cluster is commonly deployed for regional failover?
a. Active-passive cluster
b. Incremental cluster
c. Tape cluster
d. Passive-active cluster
Answer: a. Active-passive clusterliquidweb
Which system stores real-time identical data in two data centers?
a. Cold standby
b. Synchronous replication
c. Static backup
d. Tiered storage
Answer: b. Synchronous replicationliquidweb
Which of these events may not be mitigated by geographic redundancy?
a. Data corruption
b. Regional power grid failure
c. WAN outage
d. Fire in a server room
Answer: a. Data corruptionliquidweb
Which is essential for maintaining synchronized databases in separate locations?
a. ZIP compression
b. Database replication
c. Application logging
d. File fragmentation
Answer: b. Database replicationscribd+1
What is a key challenge of geo-distributed server environments?
a. Cheap hardware
b. Managing data consistency
c. Fewer staff requirements
d. Smaller energy consumption
Answer: b. Managing data consistencyliquidweb
What describes a server failover plan that includes distant data centers?
a. Local resilience
b. Disaster recovery strategy
c. Virtualization policy
d. Hybrid backup
Answer: b. Disaster recovery strategyscribd+1
In a distributed system, what does partition tolerance mean?
a. Data is always encrypted
b. The system continues to operate even if communication is lost between parts
c. Servers must be in the same location
d. Hardware must be identical
Answer: b. The system continues to operate even if communication is lost between partsliquidweb
Which server configuration offers maximal uptime in separate locations?
a. Cold standby only
b. Active-active cluster
c. Local RAID
d. Dedicated hosting
Answer: b. Active-active clusterliquidweb
Which term describes servers that can assume each other’s workload instantly even if separated geographically?
a. Redundant servers
b. Tandem servers
c. Clustered nodes
d. Active-active cluster
Answer: d. Active-active clusterliquidweb
What is an appropriate technique for data integrity between two remote sites?
a. Data deduplication
b. Hash-based replication
c. Predictive analytics
d. Deep packet inspection
Answer: b. Hash-based replicationscribd+1
Which outage scenario is least likely to affect all servers when using geo-redundant design?
a. ISP network outage
b. Global DNS failure
c. Data center fire in one location
d. Application crash
Answer: c. Data center fire in one locationliquidweb
Why should regular testing be performed for geographically redundant servers?
a. To keep up with software trends
b. To ensure redundancy functions as planned
c. To speed up performance
d. To lower licensing costs
Answer: b. To ensure redundancy functions as plannedliquidweb
Which method allows users to access services transparently regardless of their own location?
a. Load balancing
b. Location transparency
c. Location dependence
d. Static networking
Answer: b. Location transparencytkietwarana
What is the main risk if synchronization is not maintained across geographically separate servers?
a. Higher electricity usage
b. Data inconsistency
c. Increased bandwidth
d. Lower user engagement
Answer: b. Data inconsistencyliquidweb
Which is a key component of disaster recovery plans using different locations?
a. Web caching
b. Network throttling
c. Secondary data center
d. Device encryption
Answer: c. Secondary data centerliquidweb
How does geo-redundancy affect system availability?
a. It lowers availability
b. It maintains average levels
c. It increases availability
d. It has no effect
Answer: c. It increases availabilityliquidweb
Which statement is true for cloud providers with data centers on multiple continents?
a. All data is processed locally
b. They offer global failover capability
c. Users must choose one center per session
d. Backups occur only yearly
Answer: b. They offer global failover capabilityscribd+1
What technology is used to quickly distribute load in geographically spread server architecture?
a. Token passing
b. Load balancer
c. Circuit switching
d. Web proxy
Answer: b. Load balancerliquidweb
Which is an example of a regionally resilient server deployment?
a. Single city data center
b. Multiple cities with failover links
c. In-memory database
d. Standalone desktop
Answer: b. Multiple cities with failover linksliquidweb
What is the usual status of cold standby servers?
a. Running and processing live data
b. Powered down until needed
c. Syncing with live servers
d. Performing analytics
Answer: b. Powered down until neededliquidweb
Which property enables remote sites to work as backups for critical applications?
a. Cloud caching
b. Geographic redundancy
c. Centralized logging
d. IPv6 tunneling
Answer: b. Geographic redundancyscribd+1
The process of switching user connections instantly to a healthy remote server is known as what?
a. Redirection
b. Failover
c. Load sharing
d. Network mapping
Answer: b. Failoverliquidweb
Which factor determines the success of redundancy across regions?
a. Number of client devices
b. Synchronization speed between locations
c. Data compression ratio
d. LAN protocol version
Answer: b. Synchronization speed between locationsliquidweb
What does an N+1 redundancy model require if three servers are needed for operations?
a. Three total servers
b. Four servers (three active, one backup)
c. Six servers (all in one room)
d. Two smaller servers
Answer: b. Four servers (three active, one backup)liquidweb
How can businesses minimize the risk of total service outage due to local catastrophes?
a. Rely on a single data backup
b. Use geographically distributed infrastructure
c. Use only SSD drives
d. Restrict all access to one building
Answer: b. Use geographically distributed infrastructurescribd+1
Which backup practice is most reliable against regional failures?
a. Local file copy
b. Tape archive in adjacent room
c. Offsite disaster recovery site
d. Quick software patching
Answer: c. Offsite disaster recovery siteliquidweb
Which is NOT a core feature enabled by geo-dispersed data centers?
a. Multi-region failover
b. Reduced risk from disasters
c. Lower hardware procurement cost
d. Increased uptime
Answer: c. Lower hardware procurement costliquidweb
In disaster recovery, failback refers to:
a. Returning operations to the primary site after a failure is resolved
b. Shutting down backup servers
c. Data compression
d. Hardware replacement
Answer: a. Returning operations to the primary site after a failure is resolvedliquidweb
Which concept allows seamless service even when a user’s data is replicated globally?
a. Data fragmentation
b. Location transparency
c. Host-based networking
d. Data deduplication
Answer: b. Location transparencytkietwarana
What method ensures that data written in one region is concurrently available elsewhere?
a. Synchronous replication
b. Passive failover
c. Bandwidth throttling
d. Disk mirroring
Answer: a. Synchronous replicationliquidweb
What do companies need to address when deploying active-active clusters in multiple countries?
a. Currency exchange
b. Latency and synchronization
c. Data compression only
d. Printer drivers
Answer: b. Latency and synchronizationliquidweb
What is the outcome when a major cloud provider loses an entire region but has geo-redundancy?
a. Complete global service outage
b. Minimal to no user disruption
c. All data centers go offline
d. Requires manual intervention for all users
Answer: b. Minimal to no user disruptionscribd+1
Offsite tape backup is an example of what practice?
a. Archival redundancy
b. Offsite disaster recovery
c. Methodical deduplication
d. Real-time failover
Answer: b. Offsite disaster recoveryliquidweb
When using two data centers for redundancy, what is the best practice for data updates?
a. Synchronous commitment at both locations
b. Random schedule for updates
c. Only the remote site gets updated
d. Updates stored locally only
Answer: a. Synchronous commitment at both locationsliquidweb
A global ecommerce company should deploy its web servers in:
a. Single server location only
b. Multiple, geographically separated locations
c. Only in its headquarters
d. Tied to the central office’s ISP
Answer: b. Multiple, geographically separated locationsliquidweb
Which term best describes a redundant IT setup with data centers in three countries?
a. Departmental IT
b. Local cluster
c. Multi-region infrastructure
d. IT outsourcing
Answer: c. Multi-region infrastructurescribd+1
Which system keeps both primary and backup locations ready to instantly provide service?
a. Cold spare
b. Hot standby
c. Static cluster
d. Detuned server
Answer: b. Hot standbyliquidweb
Which management step is critical for successful operation of geographically separate servers?
a. Periodic failover testing
b. Unmonitored backups
c. Lower software versions
d. Infrequent data syncs
Answer: a. Periodic failover testingliquidweb

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