Network Redundancy and High Availability

What is the primary goal of implementing network redundancy?

Reduce network traffic

Increase network speed

Eliminate single points of failure

Lower network costs

Which protocol is commonly used to provide redundancy in network gateways?

HTTP

HSRP

FTP

SMTP

What does VRRP stand for in the context of network redundancy?

Virtual Router Redundancy Protocol

Variable Rate Routing Protocol

Virtual Resource Routing Protocol

Variable Resource Redundancy Protocol

In a network with multiple paths between devices, which protocol helps to prevent loops?

HTTP

FTP

HSRP

STP

What is a common characteristic of a high-availability network design?

Single point of failure

Redundant power supplies

Single network path

Minimal uptime

Which of the following is an example of a high availability clustering technology?

LACP

BGP

HSRP

HAProxy

What does an active-passive failover setup involve?

Both systems are active simultaneously

One system is active while the other is on standby

No backup system is present

Both systems are inactive

Which of these is NOT a benefit of network redundancy?

Improved fault tolerance

Increased complexity

Enhanced reliability

Reduced downtime

In the context of network redundancy, what does the term 'failover' refer to?

Regular maintenance

Automatic switching to a backup system

Manual system upgrade

Increased bandwidth

Which protocol is used to prevent loops in a network by identifying the best path?

RSTP

POP3

IMAP

SNMP

What is the main purpose of load balancing in a high availability network?

Reduce power consumption

Distribute traffic across multiple servers

Minimize the number of servers

Centralize network management

What is the role of a backup power supply in network redundancy?

Increase network speed

Provide power during an outage

Reduce network costs

Enhance data encryption

Which of the following methods can be used to achieve WAN redundancy?

Single ISP connection

Dual ISP connections

No internet connection

FTP connections

In a high availability environment, what is a common method to ensure data integrity during a failure?

Data replication

Data deletion

Data encryption

Data compression

What is the main advantage of using BGP for network redundancy?

High bandwidth

Automatic failover

Low latency

Easy configuration

Which component is essential in ensuring network redundancy in a data center?

Single switch

Redundant switches

Single router

No backup power

What is the purpose of a heartbeat signal in a high availability cluster?

Monitor server activity

Increase server speed

Reduce server costs

Manage server storage

Which technology can be used to create a redundant path between two network devices?

Trunking

Spanning Tree Protocol (STP)

Simple Mail Transfer Protocol (SMTP)

Domain Name System (DNS)

In a network with high availability, what does the term 'hot standby' refer to?

Inactive backup device

No backup device

Active backup device

Minimal backup device

What is the key benefit of using RAID in a high availability environment?

Lower power consumption

Faster data transmission

Increased storage capacity

Data redundancy and fault tolerance

Which of the following is a feature of an active-active cluster configuration?

Only one node is active at a time

No nodes are active

All nodes are active and share the load

Nodes are active on a rotational basis

What is the function of a secondary DNS server in a redundant network setup?

Store primary DNS records

Provide backup in case the primary DNS server fails

Increase primary DNS server load

Reduce network speed

What does MPLS stand for, and how does it relate to network redundancy?

Multi-Protocol Label Switching; provides multiple paths for data

Multi-Protocol Link Sharing; shares network bandwidth

Multiple Path Load Sharing; balances traffic

Multiple Path Link Switching; switches data paths

In a redundant network setup, what is the purpose of a load balancer?

Increase server power

Distribute network traffic evenly

Decrease network latency

Simplify network configuration

What is the role of a redundant array of independent disks (RAID) in network redundancy?

Increase server speed

Decrease server costs

Provide data redundancy

Simplify data encryption

Which of the following describes a 'cold standby' system?

System is immediately available

System is actively running

System has no backup

System requires manual intervention to become active

What is a key feature of a geographically redundant network?

All servers are located in a single site

Servers are distributed across multiple sites

Servers are offline

Servers have no backup

Which protocol can be used to provide redundancy for Layer 3 devices?

SMTP

FTP

BGP

IMAP

What is the purpose of a secondary power source in a high availability network?

Increase network traffic

Decrease network speed

Reduce power consumption

Provide power during primary source failure

In the context of high availability, what does the term 'failback' mean?

The process of failing to switch to a backup system

The process of reducing network bandwidth

The process of disabling backup systems

The process of returning to the primary system after a failover

What is a common practice to ensure database availability during a network failure?

Data caching

Database replication

Data encryption

Data compression

Which of the following describes 'stateful failover'?

System does not retain session information

System discards all session information

System retains session information during a failover

System does not failover

What is the main purpose of using redundant links in a network?

Simplify network configuration

Reduce network bandwidth

Increase network latency

Ensure continuous connectivity

Which feature of network redundancy involves using multiple physical connections to prevent a single point of failure?

Link aggregation

Simplex connections

Unicast transmission

Broadcast transmission

What is a primary consideration when designing a redundant power system for a data center?

Cooling requirements

Network latency

Power load balancing

Data encryption

In high availability networks, what is the purpose of using diverse routing?

Increase the number of routes

Ensure different physical paths for data

Reduce the number of routes

Simplify routing tables

What is the benefit of using a SAN (Storage Area Network) in a high availability environment?

Increased data transfer speed

Centralized storage management

Reduced network traffic

Enhanced data encryption

What does the term 'georedundancy' imply in network design?

Data is stored in a single location

Data is deleted periodically

Data is replicated across multiple geographic locations

Data is encrypted in transit

Which network design strategy helps ensure business continuity during a regional disaster?

Local backups

Increased bandwidth

Geographical redundancy

Data compression

What is the role of a UPS (Uninterruptible Power Supply) in network redundancy?

Reduce server load

Increase server speed

Simplify network configuration

Provide backup power during outages

In a network redundancy scenario, what does 'RTO' stand for and mean?

Recovery Time Objective; the target time to recover after a failure

Redundant Transfer Object; the data transferred during redundancy

Recovery Transfer Objective; the goal of transferring data

Redundant Time Objective; the time spent in redundancy

What is the primary function of a network switch in a redundant network topology?

Increase data encryption

Direct network traffic

Reduce network costs

Provide internet access

Which redundancy protocol operates at the data link layer and helps prevent broadcast storms?

Dynamic Host Configuration Protocol (DHCP)

Hypertext Transfer Protocol (HTTP)

Border Gateway Protocol (BGP)

Spanning Tree Protocol (STP)

In the context of network redundancy, what is a 'heartbeat' used for?

Monitor the health of a system or network

Increase network speed

Encrypt network traffic

Decrease network load

What does 'MTTR' stand for in high availability networks?

Maximum Time To Respond

Mean Time To Repair

Maximum Time To Repair

Mean Time To Resolve

Which of the following technologies provides high availability by allowing virtual machines to be moved between physical servers without downtime?

VLAN

SMTP

VMotion

NAT

What is a primary goal of network redundancy in a mission-critical application?

Simplify network architecture

Decrease network costs

Reduce network speed

Ensure 24/7 availability

Which of the following best describes an 'active-active' configuration in a high availability network?

Only one node is active at a time

All nodes are active and share the load

No nodes are active

Nodes are active on a rotational basis

In a high availability environment, what is the purpose of a 'quorum' in a cluster setup?

Decide which node should take over during a failover

Increase cluster speed

Reduce cluster size

Simplify cluster management

What is the benefit of using cloud services for network redundancy?

Increased local storage

Offsite data replication and recovery

Decreased internet speed

Simplified network encryption

Network Redundancy and High Availability

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