_________ is a QoS technique that allows categorizing traffic into multiple classes based on priority.
- Traffic Policing
- Traffic Shaping
- Classification
- Marking
Classification is a QoS technique that allows categorizing traffic into multiple classes based on priority.
Which legacy WAN technology was historically used for connecting distant networks but is now largely replaced by more modern technologies?
- ISDN (Integrated Services Digital Network)
- Frame Relay
- DSL
- Satellite
Frame Relay, a legacy WAN technology, was historically used for connecting distant networks but is now largely replaced by more modern technologies.
How does VLSM contribute to more efficient use of IP address space?
- It allocates larger address blocks
- It allows subnetting of subnets
- It reduces the need for NAT
- It uses IPv6 exclusively
VLSM (Variable Length Subnet Masking) allows subnetting of subnets, enabling more efficient utilization of IP address space by assigning different-sized subnets based on network requirements.
________ is a key protocol in IPv6 that replaces ARP used in IPv4 for resolving IP addresses to MAC addresses.
- Neighbor Discovery Protocol (NDP)
- Internet Group Management Protocol (IGMPv6)
- Reverse Address Resolution Protocol (RARP)
- Border Gateway Protocol (BGP)
Neighbor Discovery Protocol (NDP) is a key protocol in IPv6 that replaces ARP used in IPv4 for resolving IP addresses to MAC addresses.
To enhance security, a network administrator needs to restrict access to the SSH and Telnet services on their routers. Which type of ACL would be most appropriate for this purpose?
- Extended ACL
- Named ACL
- Reflexive ACL
- Standard ACL
An extended ACL is suitable for filtering based on specific services such as SSH and Telnet, using port numbers.
An ISP needs to manage different types of traffic from various customers effectively. Which QoS strategy should they employ to ensure fair bandwidth distribution?
- Class-Based Weighted Fair Queuing (CBWFQ)
- Traffic Shaping
- Weighted Random Early Detection (WRED)
- Hierarchical Queuing Framework
Class-Based Weighted Fair Queuing (CBWFQ) allows ISPs to manage different types of traffic effectively by assigning bandwidth based on defined classes, ensuring fair distribution.
A network technician is troubleshooting a connection problem and needs to verify the path of the packets at the network level. Which OSI layer should they focus on?
- Data Link
- Network
- Physical
- Transport
The network layer (Layer 3) is responsible for packet forwarding, routing, and addressing, making it crucial for troubleshooting the path of packets at the network level.
In STP, which type of port directly forwards frames and participates in the active topology?
- Blocking Port
- Designated Port
- Non-Designated Port
- Root Port
A designated port in STP directly forwards frames and participates in the active topology, ensuring the loop-free operation of the network.
An organization requires a centralized logging solution for their multi-vendor network devices. Which protocol would best suit this requirement?
- Syslog
- SNMP
- NetFlow
- ICMP
Syslog is a protocol used for centralized logging in a network. It is suitable for collecting and managing logs from multi-vendor network devices.
To prevent unauthorized device access, it is recommended to change ________ regularly.
- IP address
- MAC address
- Passwords
- Encryption keys
To prevent unauthorized device access, it is recommended to change passwords regularly.