CCNA 1 Final

Which two traffic types use the Real-Time Transport Protocol (RTP)?

Video and voice.

What wireless technology is popular in home automation applications due to low-power and data rate requirements?

ZigBee.

Which layer of the TCP/IP model provides a route to forward messages through an internetwork?

Internet.

Which type of server relies on record types such as A, NS, AAAA, and MX?

DNS.

What are proprietary protocols?

Protocols developed by organizations that control their definition and operation.

What service is provided by DNS?

Resolves domain names into IP addresses.

If a client packet has a destination port number of 110, what service is the client requesting?

POP3.

What command is used on a Windows PC to see the IP configuration?

ipconfig.

What networking model is in use when a shared printer is accessible by multiple computers?

Peer-to-peer (P2P).

What characteristic describes a virus?

Malicious software or code running on an end device.

How should data types be prioritized if QoS is implemented, given financial transactions, web pages, and audio conferences?

Audio conference, financial transactions, web page.

What is the global routing prefix in an IPv6 address?

The network portion of the address.

What layers of the TCP/IP model are used when a file is transferred from Host1 to a server?

Application, transport, internet, and network access.

Which switching method stores the entire frame before forwarding?

Store-and-forward switching.

What is the default gateway for Host H1 in the exhibit provided?

R1: G0/0.

What service does Internet Messenger provide?

Real-time chatting among remote users.

What subnet mask can support 25 connected devices?

255.255.255.128.

What describes a characteristic of a Trojan horse?

Malicious software or code running on an end device.

What function does HTTPS provide?

Uses encryption to secure the exchange of data on the web.

How does a PC track data flow between multiple application sessions?

Based on the source port number used by each application.

What subnet mask can support 61 connected devices?

255.255.255.192.

What defines an effective DoS attack?

An attack that slows or crashes a device or network service.

How can matching application protocols to transport protocols be done?

By understanding which protocols operate at which layers.

What is the function of DHCP?

Dynamically assigns IP addresses to devices.

What characteristic describes a physical address?

It is the MAC address contained in the Layer 2 header.

What action occurs when a switch reaches a user-defined error threshold?

The switch will revert to store-and-forward mode.

Which wireless technology has low-power and low-data rate requirements for IoT?

Zigbee.

How does a host obtain a destination MAC address if no mappings are in its ARP cache?

It will send an ARP request for the MAC address of the destination device.

What address class is defined by a subnet mask of 255.255.255.0?

Class C network.

What can cause corrupted data signals in newly installed Ethernet cabling?

EDMI.

Which network addressing allows for access by MAC address?

Layer 2 addressing.

What are the criteria for IPv4 subnetting?

Each network must accommodate a specified number of devices.

What must a device do if it must reach an address not known through ARP?

Send an ARP request.

What is the purpose of NAT?

To share private IP addresses among multiple devices.

Which fields identify Layer 3 protocols in an Ethernet frame?

Type field.

What does the term ‘attenuation’ mean in data communication?

Loss of signal strength as distance increases.

What must a client do after generating an IPv6 address using SLAAC?

Send an ICMPv6 Neighbor Solicitation message to ensure the address is not in use.

What happens if a router receives an IPv4 packet with a TTL of 0?

It discards the packet and sends an ICMP Time Exceeded message.

What is required for a Windows host to display its routing table?

Use 'route print' or 'netstat -r' commands.

Which command can be executed on a Cisco device to check the configurations?

show running-config.

What is the function of an IPS?

Monitor and prevent network attacks.

How does a firewall protect the network?

It filters traffic based on defined rules.

What devices need to be identified when establishing a path in a routing table?

Next-hop addresses.

What effect does NAT have on applications requiring end-to-end connectivity?

It may introduce problems.

What is required for a device in a LAN to reach a device in another network?

Proper configuration of the default gateway.

How does a manager authenticate remote users?

Based on usernames and passwords.

What does a protocol analyzer do?

It captures and analyzes network traffic.

How should devices be addressed if multiple networks are combined?

Using a common subnet mask.

What does a redistribution route refer to in networking?

Allowing routers to forward packets to different routing tables.

What indicates a successful Layer 3 connection?

The ability to exchange data between hosts.

What explains the cause of data packet fragmentation in routing?

Exceeding the MTU of the next link.

What must be done to measure packet loss in the network?

Utilize ping or traceroute commands.

How does the Ethernet framing process work?

Encapsulates data packets for effective transmission.

What refers to the number of hosts in a subnet?

It is determined by the subnet mask.

What is the advantage of configuring a default gateway?

Ensures communication with devices outside the local subnet.

How do you check the operational statuses of interfaces on a device?

Using the 'show ip interface brief' command.

What indicates a potential network security threat?

Intrusion detection alarms or logs.

What does a port filtering firewall do?

Prevents access based on port numbers.

How are conference call data packets prioritized in QoS?

Real-time data gets higher priority than non-real-time data.

What method describes how functions communicate in a Layered model?

Encapsulation.

Which factors affect link-layer switching decisions?

MAC addresses and speed settings.

What command can be used to view active connections on a device?

netstat.

What is a sign of a DoS attack?

Abrupt service interruptions for users.

What signaling protocol allows remote management of network devices?

SNMP.

What role does the transport layer serve in TCP/IP?

Manages packet transmission and reliability.

What indicates that a packet has traversed multiple routers?

Changes in Layer 2 MAC addresses.

What does QoS stand for in networking?

Quality of Service.

How does encryption affect packet transmission for networks?

It ensures data privacy during exchange.

What aspect of a network addresses logical addressing?

IP addressing schemas.

What is the purpose of a subnet mask?

To delineate the network and host portions of an IP address.

What could hinder a device's ability to communicate across subnets?

Improper default gateway configuration.

How is backplane bandwidth typically measured?

In terms of bits per second.

What distinguishes public from private IP addressing?

Administrative controls and access.

How do routers utilize learned routes?

To manage packet forwarding efficiently.