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Which of the following best defines a cluster in computer networking?
a. A high-speed internet connection
b. A group of interconnected computers operating as a single system
c. A single computer with multiple processors
d. An isolated computer system
Answer: b. A group of interconnected computers operating as a single systemamnic+2
What is the primary purpose of clustering in networking?
a. Improving aesthetics
b. Increasing computational power and reliability
c. Reducing cable costs
d. Decreasing storage capacity
Answer: b. Increasing computational power and reliabilitygeeksforgeeks+1
In network clusters, individual computers are also known as:
a. Hubs
b. Switches
c. Nodes
d. Segments
Answer: c. Nodesvirtana+1
Which type of cluster is designed mainly for uninterrupted service despite hardware failures?
a. Load balancing cluster
b. Storage cluster
c. High-availability cluster
d. Visualization cluster
Answer: c. High-availability clusteramnic+1
In clustering, what is the function of “heartbeat” messages?
a. Encrypt data
b. Monitor nodes’ status
c. Increase bandwidth
d. Compress network traffic
Answer: b. Monitor nodes’ statusamnic
Which component coordinates the operation and status of nodes in a cluster?
a. Router firmware
b. Cluster management software
c. Proxy server
d. Web server
Answer: b. Cluster management softwarescribd+1
What is an example use-case for a load balancing cluster?
a. Cloud backup
b. Web server farm
c. Single-user workstation
d. Peer-to-peer file sharing
Answer: b. Web server farmcloud.ibm+1
Which term describes a cluster configured to provide computational power for scientific applications?
a. Transactional cluster
b. Storage area network cluster
c. High-performance computing (HPC) cluster
d. Proxy cluster
Answer: c. High-performance computing (HPC) clustervirtana+1
Which protocol is often used for efficient node-to-node communication in cluster networks?
a. HTTP
b. SMTP
c. RDMA
d. POP3
Answer: c. RDMAcloud.ibm
What key advantage does a cluster network have over a single powerful server?
a. Simpler management
b. Lower redundancy
c. Scalability and fault-tolerance
d. Lower power output
Answer: c. Scalability and fault-tolerancecloud.ibm+1
What happens if a node fails in a high-availability cluster?
a. The cluster shuts down
b. Another node takes over the workload
c. Data is immediately lost
d. All nodes reboot
Answer: b. Another node takes over the workloadamnic+1
Which cluster type ensures that computing jobs are distributed across several machines for optimal resource use?
a. File sharing cluster
b. Load-balancing cluster
c. Token ring cluster
d. Ring topology cluster
Answer: b. Load-balancing clusteramnic
Clusters that require high bandwidth and low latency are best suited for:
a. Print servers
b. Word processing
c. AI training and simulation
d. Simple file transfer
Answer: c. AI training and simulationcloud.ibm
Which of the following resources is most commonly shared among cluster nodes?
a. Printers
b. Shared storage
c. Antivirus licenses
d. Electrical circuitry
Answer: b. Shared storagecloud.ibm+1
In cluster networking, the collection of interconnected computers usually appears to users as:
a. Multiple independent systems
b. One unified system
c. Redundant processors
d. Multiple routers
Answer: b. One unified systemgeeksforgeeks+1
What network infrastructure is essential for enabling inter-node communication in clusters?
a. Satellite dish
b. High-speed networking hardware
c. Fax line
d. Modem
Answer: b. High-speed networking hardwareamnic
Which function is enhanced when using clusters for hosting web applications?
a. Print quality
b. Application availability
c. Network jitter
d. Power consumption
Answer: b. Application availabilitycloud.ibm+1
Which computing paradigm does clustering most closely resemble?
a. Centralized computing
b. Distributed computing
c. Single-user processing
d. None of the above
Answer: b. Distributed computinggeeksforgeeks+1
Which layer of the OSI model is most relevant to cluster node-to-node data transfer?
a. Presentation layer
b. Application layer
c. Transport layer
d. Network layer
Answer: c. Transport layersanfoundry+1
Most cluster architectures rely on which kind of topology for connecting nodes?
a. Bus topology
b. Star topology
c. Mesh or hybrid topologies
d. Ring topology
Answer: c. Mesh or hybrid topologiestestbook+1
In Kubernetes, what is a ‘pod’ within a cluster context?
a. Hardware switch
b. Virtualized, logical unit hosting containers
c. A standalone switch
d. Hub-and-spoke
Answer: b. Virtualized, logical unit hosting containerskubernetes+1
“Failover” in cluster architecture refers to:
a. Data backup
b. Automatic switch to a standby node
c. Manual restart
d. Scheduled shutdown
Answer: b. Automatic switch to a standby nodeamnic
Which type of software-defined networking environment is commonly used in cloud cluster networks?
a. VPC (Virtual Private Cloud)
b. P2P
c. ISDN
d. PBX
Answer: a. VPC (Virtual Private Cloud)cloud.ibm
In cluster operations, “state synchronization” means:
a. Rebooting nodes
b. Sharing cluster configuration and workload info
c. Power cycling nodes
d. Upgrading firmware
Answer: b. Sharing cluster configuration and workload infoamnic
What term describes a network where all nodes are connected to a single communication line?
a. Star
b. Mesh
c. Multi-access bus
d. Fiber loop
Answer: c. Multi-access bustestbook
The primary reason for using dedicated cluster interconnects is:
a. Cost reduction
b. Ensuring low latency and high throughput
c. Virus control
d. Chromatic balancing
Answer: b. Ensuring low latency and high throughputcloud.ibm+1
Which scenario benefits most from clustering?
a. Occasional email checks
b. Large-scale data analytics
c. Home printing
d. Video compression
Answer: b. Large-scale data analyticsamnic+1
Which cluster type would be most appropriate for supporting mission-critical databases?
a. Ad hoc peer group
b. High-availability cluster
c. Isolated server
d. Basic workstation
Answer: b. High-availability clusteramnic
What is the likely result when synchronizing state between nodes fails?
a. Improved performance
b. Cluster instability or failover
c. Better security
d. Irrelevant effect
Answer: b. Cluster instability or failoveramnic
What is a typical feature of a cluster network profile?
a. Cable length
b. List of eligible components
c. Mouse preferences
d. Display settings
Answer: b. List of eligible componentscloud.ibm
Which open source solution is famous for building inexpensive Beowulf clusters?
a. Windows NT
b. Beowulf Project
c. Internet Explorer
d. Exchange Server
Answer: b. Beowulf Projectsanfoundry+1
In networking, clustering middleware primarily functions to:
a. Prevent wireless interference
b. Manage and coordinate nodes
c. Increase battery life
d. Upgrade CPU speed
Answer: b. Manage and coordinate nodessanfoundry+1
A node in a computing cluster that stores only backup data is best serving which cluster role?
a. Front-end node
b. Management node
c. Backup node
d. Hub node
Answer: c. Backup nodegeeksforgeeks+1
Which method allows cluster nodes to communicate directly at the RAM level?
a. SSH
b. RDMA
c. HTTP
d. SMTP
Answer: b. RDMAcloud.ibm
Security isolation in cluster networks is achieved by:
a. Merging with external IP ranges
b. Using a separate address space
c. Sharing MAC addresses
d. Overloading switches
Answer: b. Using a separate address spacecloud.ibm
Which cluster network feature is especially beneficial for artificial intelligence (AI) workloads?
a. Minimal storage
b. High bandwidth and low latency
c. Multicast IPs
d. Small workgroups
Answer: b. High bandwidth and low latencyamnic+1
Which of the following is NOT typically a reason to implement clustering?
a. Redundancy
b. Scalability
c. Improved security
d. Decreased uptime
Answer: d. Decreased uptimegeeksforgeeks+1
If network bandwidth is insufficient in a cluster, what may result?
a. Optimal parallel performance
b. Increased node failure
c. Bottlenecks and performance degradation
d. Enhanced failover
Answer: c. Bottlenecks and performance degradationcloud.ibm+1
In the context of clusters, what does the “single system image” mean?
a. Each node acts alone
b. The user sees the cluster as one unified system
c. Multiple disconnected systems
d. Only one node is powered
Answer: b. The user sees the cluster as one unified systemsanfoundry+2
The most common medium for cluster node interconnections today is:
a. Coaxial cable
b. Twisted pair Ethernet
c. Fiber optic links
d. Telephone lines
Answer: c. Fiber optic linksamnic+1
In cluster networks, “partitioning” generally refers to:
a. Separating nodes into failure domains
b. Upgrading memory
c. Reducing disk space
d. Merging subnets
Answer: a. Separating nodes into failure domainsibm
In cloud deployments, which clustering concept is used for grouping virtual machines?
a. Network Address Translation
b. Software-defined networking clusters
c. Print servers
d. Intrusion detection
Answer: b. Software-defined networking clusterskubernetes+1
What role do “heartbeat” mechanisms serve in highly available network clusters?
a. Printing alerts
b. Ensuring nodes are alive and responsive
c. Requesting IP leases
d. Upgrading hard drives
Answer: b. Ensuring nodes are alive and responsiveamnic
How do cluster networks generally increase availability for mission-critical applications?
a. By decreasing redundancy
b. By distributing workloads across nodes and allowing failover
c. By lowering latency only
d. By consolidating switches
Answer: b. By distributing workloads across nodes and allowing failovercloud.ibm+1
Cluster networks typically isolate their traffic:
a. On external public networks
b. On a separate, non-routed segment
c. Across variable ISPs
d. Through USB connections
Answer: b. On a separate, non-routed segmentcloud.ibm
What allows bursty, high-throughput applications (like big data analytics) to benefit from cluster networks?
a. Long cable runs
b. High-speed low-latency interconnects
c. Low memory
d. Power-saving modes
Answer: b. High-speed low-latency interconnectsamnic+1
Which topology is most resilient in cluster network design?
a. Bus
b. Star
c. Mesh
d. Ring
Answer: c. Meshtestbook+1
Clustered file systems primarily benefit clusters by allowing:
a. Only one node at a time to write
b. Shared access to data among nodes
c. Faster boot times
d. Limits on storage expansion
Answer: b. Shared access to data among nodesamnic
What is the main difference between a cluster and a grid computing environment?
a. Clusters use tightly coupled nodes, grids are loosely coupled
b. Clusters can’t do parallel processing
c. Grids are always cheaper
d. Clusters rely on manual failover
Answer: a. Clusters use tightly coupled nodes, grids are loosely coupledgeeksforgeeks+1
Which management feature is most crucial for maintaining large-scale cluster networks?
a. Centralized update management
b. Manual hardware resets
c. Static routing tables only
d. Local-only logins
Answer: a. Centralized update managementvirtana+1

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