An analyst is reviewing failures of network switches that cannot be repaired once they fail. Which reliability metric applies?

A company plans to replicate data every 4 hours. This frequency directly impacts which metric?

An attacker sends unsolicited ARP replies to impersonate the gateway. What attack is this?

A network engineer deploys multiple fibre connections between two servers to guarantee connectivity in case one fails. Which concept is this?

A web application receives traffic through a device that decides how to distribute client requests across multiple servers. Which device is being used?

A company defines that after an outage, the service must be restored within 3 hours. Which metric is this?

A cybercriminal uses multiple compromised systems to overwhelm a victim’s bandwidth. This describes a:

A technician bundles four Ethernet cables into a single logical link for higher bandwidth and redundancy. Which protocol supports this?

A company wants its backup generator to automatically take over when power fails. What must still be present?

A malicious actor intercepts traffic between two endpoints without detection. Which attack is this?

A user reports a fake Wi-Fi network named similar to the legitimate one. What attack is this?

A device caches configuration settings in battery-backed memory to protect against sudden loss. This feature is known as:

A server cluster where all nodes actively process traffic simultaneously is known as:

A network admin restricts each switchport to a single MAC address to prevent rogue devices. What technique is used?

A threat actor modifies the HOSTS file on a victim’s device so specific domain names resolve incorrectly. This is a:

A business wants side-to-side separation of devices within one VLAN. Which technology enables this?

Password hashes stored insecurely are at risk of which attack?

A company wants to ensure that a default gateway is always reachable without reconfiguring hosts. What protocol supports this?

A system admin reviews the total operational hours of a device divided by the number of failures. This metric is:

An attacker sets up a DHCP server that gives victims a malicious default gateway. What attack is this?

A company plans to restore full operations after an outage, including administrative tasks. The total time includes RTO plus WRT. What is the name of this combined period?

Which site requires the longest time to restore operations after a disaster?

An admin configures a trunk to use a unique native VLAN to reduce risk. This follows best practice for preventing:

An organisation deploys a system where a backup router uses a priority system to take over if the active router fails. Which protocol describes this?

A system has a high MTTR. What does this typically indicate?

A company wants to prevent devices from using unauthorized wireless networks. Which measure helps?

A botnet controller sends commands to infected hosts. The network that manages this is known as:

A system must never lose more than 30 minutes of data if a failure occurs. Which metric sets this?

A firewall applies rules from top to bottom and blocks anything not explicitly allowed. This is known as:

A device that filters and stabilises power while allowing remote power monitoring is called a:

A technician detects an employee plugging an unauthorized laptop into a free switchport. Which defence applies?

Multiple ISPs with physically separate entry points to a building are used to ensure:

A firewall admin configures INPUT, OUTPUT, and FORWARD chains. Which tool is being used?

Malware that encrypts files and demands payment is known as:

An organisation defines that a service can be unavailable for up to 8 hours without severe impact. Which concept is this?

An attacker uses double tagging to access a VLAN they shouldn’t. What attack is this?

Which power problem describes a prolonged reduction in voltage?

A technician needs a backup of a device’s running configuration for rollback. This is a:

A wireless admin wants to isolate connected clients so they cannot communicate with one another. This is called:

If a component is repairable, which metric tracks average repair time?

When an attacker sends large numbers of DNS queries using a spoofed source IP, this is:

A network admin implements control plane rate-limiting to protect the router CPU. This is:

Which fire suppression system uses water to extinguish fires?

A user sees a fake login pop-up mimicking a real OS window. What malware does this?

A network's uptime is measured over a year and expressed as a percentage. This identifies its:

A malicious person follows an employee through a secured door without authentication. This is:

A warm site typically takes how long to activate?

A cluster that shares one external address between nodes uses what?

Users are disconnected from Wi‑Fi suddenly due to a targeted attack. What caused this?

A company wants systems to remain online even if individual servers fail. Which technology supports this?

Attackers try every possible password until one works. This is:

A generator must always be paired with which component?

An organisation deploys a web portal that forces users to accept terms before connecting wirelessly. This is:

A power event where voltage spikes momentarily is called a:

A backup method capturing the whole system state including applications and OS is:

An attacker spoofs a trusted DNS record on a server. This is:

A technician assigns unused switchports to a black hole VLAN. This is an example of:

A laptop overheats in a poorly ventilated room. Which infrastructure support system helps prevent this?

Malware that hides itself deeply inside the OS to avoid detection is a:

Switching between multiple active uplinks to improve performance best describes:

A technician enforcing strong password length is performing:

In a failover scenario, the time taken to restore normal application operation plus cleanup is:

An employee viewing another’s PIN over their shoulder is an example of:

A malicious AP installed in the building by an attacker is called:

A user gets redirected to a fake website although the URL is correct. What attack is likely?

Devices with identical MAC addresses on a switch indicate which attack?

Tools that check vendor updates for embedded IoT devices support:

When a device loses power for a short period due to grid failure, it experienced a:

A hacker uses social engineering via email to trick employees. This is:

An attacker overwhelms a firewall’s state table with SYN packets. This is a form of:

A network backup that records multiple versions of a configuration allows:

An admin uses ND Inspection to protect against rogue IPv6 devices. This protects which protocol layer?

To prevent wireless coverage leakage outside a building, an admin adjusts:

A node in a cluster that only becomes active during failure is:

A system’s operational hours divided by its number of failures measures:

A pop-up program that appears legitimate but installs malware is a:

Which wireless security technique isolates guest devices from internal networks?

A device that replaces grid power for long periods is:

A malicious actor using a fake MAC address is performing:

A switch feature that validates ARP packets against DHCP snooping tables is:

The complete loss of power describes a:

A configuration where multiple nodes process traffic and share a virtual address describes:

When an OS forces the user to accept automatic updates for security patches, this is part of:

Allowing only authorised MAC addresses to use a wireless network is:

A company requires that hosts keep the same IP address for their gateway even during failover. Which technology supports this?

A company restricts access to IoT devices to a separate monitoring network. This is:

A malicious actor broadcasting many gratuitous ARP replies is attempting:

A sudden increase in voltage that lasts only milliseconds describes a: