1. A junior network administrator needs a solution to allow help-desk technicians to access remote devices to provide technical support. The solution needs to be secure and provide a graphical interface. Which technology will provide the required solution?
- SSH
- VPN
- RDP
- Telnet
Explanation: Remote Desktop Protocol (RDP) is a technology that allows a complete desktop experience with high resolution graphics for users to access a remote device. RPD sessions operate over an encrypted channel to prevent session eavesdropping. Security can be enhanced with strong passwords and two-factor authentication.
2. Which tunneling technology allows a user to connect to a private network and access the services and resources on the network remotely?
- GRE tunnel
- site-to-site VPN
- RDP
- remote-access VPN
Explanation: A remote-access VPN creates a virtual tunnel between an user device and a remote network through the public internet. Over this VPN tunnel the user connects to the private network and has remote access to permitted services and resources. A site-to-site VPN is created when VPN terminating devices, also called VPN gateways, are preconfigured with information to establish a secure tunnel.
3. Which is used by administrators to control, interact with and collect data from network and client devices?
- network baselining tools
- network protocol analyzers
- network vendor knowledge bases
- network monitoring systems==
Explanation: Network management systems (NMS) are used to collect data from network devices such as switches, routers, access points, and client devices. The data collected is used to provide insights into the health of the network.
An NMS also gives the network administrator the ability to control these devices operate and interact with one another.