3.0 Network Operations Flashcards
What defines proper system usage for employees when using information technology (IT) systems?
AUP
what type of policy would specify the rules and guidelines related to connecting a personally owned device to a corporate network?
BYOD policy
what policy are employees typically required to read and acknowledge that outlines user responsibilities?
AUP
what UDP-based encryption protocol is often used for VPN access?
DTLS (datagram transport layer security)
what protocol uses SSH with FTP to securely transfer files?
SFTP
why is telnet not recommended for use today?
lack of encryption
what should be used in place of telnet for better security?
SSH
what type of VPN allows users to access an internal network with a web browser?
SSL VPN
note that SSL VPNs often use TLS
what protocol would you use to transfer large files?
FTP
what type of system would you use to consolidate and analyze security logs from multiple systems, in addition to providing real-time monitoring?
SIEM (security information and event management)
what option should you use to ensure SNMPv3 command and information remains confidential?
the authProv security level
what protocol would you use to securely manage network devices?
SNMPv3
what should be done if a software update causes some features to no longer work?
Rollback the update
what process would an organization implement to ensure systems are kept up-to-date?
patch management
what is the best place to test updates to ensure they do not cause undesired outages?
Test server or test environment
what should a technician do if he is unable to complete a change within an approved maintenance window?
Rollback the change
what provides fault tolerance and can ensure systems to continue to operate after a disaster?
Redundancy
what is the term for combining multiple physical ports on a switch to a single virtual port?
port aggregation
assuming backups are performed daily, what type of backup plan minimizes the amount of time needed to restore backups?
Full with differential backups
a full backup every day would also minimize the amount of time needed to restore backups, but performing full backups daily is typically not feasible
assuming backups are performed daily, what type of backup plan minimizes the amount of time needed to perform backups?
Full with incremental backups
what continuity of operations site is the cheapest?
Cold site
what continuity of operations site provides the shortest recovery time?
Hot site
what provides an estimate of the amount of time it would take to restore a failed system?
MTTR (mean time to recover)
what provides a measure of a system’s reliability and would provide an estimate of how often it is likely to experience an outage?
MTBF (mean time between failures)
what is provided with the use of two identical servers?
High availability and fault tolerance
what does an organization use to ensure a service provider meets minimum performance expectations?
SLA
what would you use to compare current network performance with past network performance to identify any changes?
Baseline
where would you find the correct configuration settings for a server that was recently changed?
change management records
where would cables from external sources connect to within an organization?
MDF (main distribution frame)
what type of diagram would you use to identify the number of broadcast domains on a network?
logical network diagram
what policy should you consult before opening ports on a firewall?
a change management policy
what describes a document that provides instructions for performing a task?
SOP (standard operating procedure)
you want to verify that a network change will improve performance. what would you create before implementing the change so that you can measure the improvement?
A baseline
what policy should you follow before applying updates to network devices?
a change management policy
