IT&C 247 Final

Which of the following devices is used to physically connect computers in the same VLAN?

A switch

How many bits are allocated to the host identifier in an IPv4 address on a 10.61.0.0/19 network?

13

Which TCP/IP parameter specifies the IP address of a router that provides access to other networks?

Default Gateway

What is the default subnet mask for an IPv4 Class A network?

255.0.0.0

What is the most accurate description of the subnetting process on an IPv4 network?

You borrow bits from the host identifier to create a subnet identifier

What term describes the ability to create subnets using any number of bits in CIDR?

VLSM

The gateway IP address is assigned to which physical device?

Router

At which OSI layer do MAC addresses operate?

Data link layer

Which protocol is NOT typically used to secure communication between web servers and browsers?

SSH

Which protocol uses a sliding window technique for flow control?

TCP

Which FTP variant is used to download boot image files during PXE startup?

TFTP

OSPF routers calculate route cost based on what specification?

Transmission speed

Which statement about BGP is NOT true?

BGP is a link state routing protocol

Which protocol is NOT used for remote control of computers?

TFTP

Which routing protocol uses Dijkstra’s algorithm?

OSPF

How is SSH an improvement over Telnet?

SSH encrypts passwords and data

Which routing protocol works well with different network speeds where hop count is inaccurate?

EIGRP

Which protocol measures route efficiency by hop count?

RIP

What is the native file sharing protocol for Windows?

SMB

What type of routing protocol relies on hop counts?

Distance vector protocol

What is the maximum number of routes in a RIP broadcast packet?

25

How do users exchange secure messages using symmetric encryption?

Use a shared secret key for encryption and decryption

Which statement about routers is true?

Routers are Network layer devices that use IP addresses to forward frames

On which devices should you disable unused ports for security?

Switches

Which statement about switches and routers is true?

Routers operate at the Network layer, whereas switches operate at the Data link layer

Which statement about VLANs is true?

A VLAN creates a limited broadcast domain on a switched network

Which device can create VLANs and route between them?

Multilayer switch

What problem is STP designed to prevent?

Broadcast storms

What is true about content filtering in firewalls?

Content filters examine packet data for objectionable material

What is a zero-day vulnerability?

A vulnerability with no fix yet developed

Honeypots and honeynets are what type of security measure?

Mitigation techniques

What is a honeypot?

A decoy system used to attract attackers

Which device can be implemented as software in an OS?

Firewall

How do account lockouts prevent password attacks?

By limiting incorrect login attempts

Identification badges and key fobs are what type of security?

Physical security

What defines a complex password?

Mixed uppercase, lowercase, numbers, and symbols

Which is NOT a server hardening policy?

Upgrading firmware

What best describes ransomware?

A system is locked until a fee is paid

Account lockout policies protect against what attack?

Brute force

What is the function of a firewall?

Restricts incoming and outgoing network traffic

Which CIA triad element prevents unauthorized data modification?

Integrity

What service do ACLs provide?

Authorization

Which protocol resolves names to IP addresses?

DNS

Which command displays a router’s configuration?

show config