What is a critical factor to consider when implementing Quality of Service (QoS) in a WAN?
- Bandwidth
- Latency
- Jitter
- Packet Loss
Bandwidth is a critical factor to consider when implementing QoS in a WAN, as it helps prioritize and manage network traffic based on available bandwidth.
Network automation tools often interface with devices using which protocol for configuration and management tasks?
- SNMP
- FTP
- SSH
- HTTP
Network automation tools often interface with devices using the SSH (Secure Shell) protocol for configuration and management tasks.
To enhance fault tolerance, switch stacking often employs _______ as a backup in case the primary connection fails.
- Dual-link
- Load balancing
- Port mirroring
- Redundancy
To enhance fault tolerance, switch stacking often employs redundancy as a backup in case the primary connection fails.
How does PAT (Port Address Translation) differ from traditional NAT?
- PAT and traditional NAT are essentially the same
- PAT assigns a unique port number to each private IP address, allowing multiple devices to share a single public IP address
- PAT is used for routing within a local network, while traditional NAT is used for external communication
- PAT only works with IPv6, while traditional NAT works with IPv4
PAT (Port Address Translation) assigns a unique port number to each private IP address, enabling multiple devices to share a single public IP address, whereas traditional NAT typically uses one-to-one mapping.
Switch stacking allows multiple switches to operate as a single _______ entity.
- Logical
- Physical
- Unified
- Virtual
Switch stacking enables multiple switches to operate as a single virtual entity.
A network administrator is designing a system with a focus on redundancy and minimal downtime. What network technology should they prioritize?
- Dynamic Host Configuration Protocol (DHCP)
- Network Address Translation (NAT)
- Simple Network Management Protocol (SNMP)
- Virtual Router Redundancy Protocol (VRRP)
To prioritize redundancy and minimal downtime, the network administrator should prioritize Virtual Router Redundancy Protocol (VRRP), which provides high availability by allowing for a backup router to take over in case the primary router fails.
An organization requires a firewall solution that can manage and monitor both internal and external traffic efficiently. What type of firewall should they consider?
- Stateful Inspection
- Proxy Firewall
- Next-Generation Firewall (NGFW)
- Packet Filtering
A Next-Generation Firewall (NGFW) is designed to manage and monitor both internal and external traffic efficiently with advanced features beyond traditional firewalls.
An organization needs to securely connect its main office to three regional offices using the internet. What is the most appropriate solution to ensure security and connectivity?
- MPLS (Multiprotocol Label Switching)
- VLAN (Virtual Local Area Network)
- SD-WAN (Software-Defined Wide Area Network)
- OSPF (Open Shortest Path First)
SD-WAN is designed for secure and efficient connectivity over the internet, making it a suitable solution for connecting multiple offices securely.
A network engineer is configuring a high-availability network with Cisco routers. They need a protocol that offers both redundancy and load balancing for multiple routers acting as a gateway. Which protocol is most appropriate?
- HSRP (Hot Standby Router Protocol)
- VRRP (Virtual Router Redundancy Protocol)
- GLBP (Gateway Load Balancing Protocol)
- OSPF (Open Shortest Path First)
GLBP is a Cisco proprietary protocol that provides both redundancy and load balancing for multiple routers acting as a gateway in a high-availability network.
An organization wants to automate their network configurations and ensure state consistency across devices. Which automation tool should they implement?
- Ansible
- Puppet
- Chef
- SaltStack
Ansible is a popular automation tool for network configuration management, providing simplicity and ensuring state consistency across devices.
Which protocol is commonly used to negotiate EtherChannel links between Cisco switches?
- CDP (Cisco Discovery Protocol)
- OSPF (Open Shortest Path First)
- PAgP (Port Aggregation Protocol)
- STP (Spanning Tree Protocol)
PAgP (Port Aggregation Protocol) is commonly used to negotiate EtherChannel links between Cisco switches.
________ is a protocol used by switches to automatically adjust port settings for optimal speed and duplex mode.
- CDP (Cisco Discovery Protocol)
- DHCP (Dynamic Host Configuration Protocol)
- PAgP (Port Aggregation Protocol)
- STP (Spanning Tree Protocol)
STP (Spanning Tree Protocol) is a protocol used by switches to automatically adjust port settings for optimal speed and duplex mode.