Which feature of SDN allows for the creation of virtual networks over the physical network infrastructure?
- Network Virtualization
- OpenFlow
- SDN Controller
- Traffic Engineering
Network virtualization in SDN enables the creation of virtual networks over the physical network infrastructure.
In DHCP, what is the purpose of the lease time?
- To specify the client's hardware address
- To determine the subnet mask
- To define the period a client can use an IP address
- To assign a default gateway
The lease time in DHCP defines the period during which a client can use the assigned IP address before renewal is required.
What is the primary purpose of the Spanning Tree Protocol (STP) in a network?
- Error detection
- Load balancing
- Preventing loops
- Reducing latency
The primary purpose of the Spanning Tree Protocol (STP) is to prevent loops in a network topology, ensuring a loop-free and stable network.
________ encryption is commonly used in SSH for securing remote management sessions.
- Symmetric
- Asymmetric
- Public Key
- Private Key
Asymmetric encryption is commonly used in SSH for securing remote management sessions.
What is the primary function of Border Gateway Protocol (BGP) in networking?
- Dynamic Routing
- Interior Gateway Protocol (IGP)
- Exterior Gateway Protocol (EGP)
- Link-State Routing
The primary function of Border Gateway Protocol (BGP) is to exchange routing information between different Autonomous Systems (AS) on the Internet, making it an Exterior Gateway Protocol (EGP).
How does route summarization impact the convergence time in a dynamic routing environment?
- Accelerates convergence
- Delays convergence
- Has no impact on convergence
- Improves route computation
Route summarization can potentially delay convergence in a dynamic routing environment by limiting the exchange of detailed route information between routers.
What is the purpose of subnetting in IPv4 networks?
- To improve network security
- To increase the number of available IP addresses
- To provide a way to group hosts logically and efficiently
- To reduce network congestion
Subnetting in IPv4 networks serves the purpose of logically grouping hosts to optimize network management and improve efficiency.
An organization wants to block all incoming traffic from a specific IP range due to security concerns. Which feature of ACLs would be most effective?
- Dynamic ACL
- Named ACL
- Reflexive ACL
- Standard ACL
Standard ACLs can filter traffic based on source IP addresses, making them effective for blocking specific IP ranges.
In advanced network management, how does SDN (Software-Defined Networking) change the approach to device monitoring?
- Centralized Control
- Decentralized Monitoring
- Static Configuration
- Traditional SNMP Monitoring
SDN changes the approach to device monitoring in advanced network management by introducing centralized control, allowing for dynamic and programmable monitoring strategies.
What is the primary function of a router in a network?
- Connecting devices within the same network
- Filtering spam emails
- Forwarding data between different networks
- Managing Wi-Fi connections
The primary function of a router is to forward data between different networks, facilitating communication between them.
When dealing with complex issues, _____________ can provide insights into problems caused by recent network changes.
- Syslog
- NetFlow
- SNMP
- Ping
NetFlow, when employed, can provide insights into complex issues by monitoring and analyzing network traffic, particularly problems caused by recent network changes.
Which protocol uses the DUAL algorithm to ensure loop-free and rapid convergence?
- BGP
- EIGRP
- OSPF
- RIP
EIGRP (Enhanced Interior Gateway Routing Protocol) uses the DUAL (Diffusing Update Algorithm) to ensure loop-free and rapid convergence in routing.