Sabrina, a network system engineer is designing a medium network with the capability to expand in the future. In her network design, Sabrina has included racks, end user devices and dedicated networking devices. What type of networking device would Sabrina include for the purpose of scalable routing within a network and network segmentation? Hint: Works in both the network and data link layer.

What is the decimal value of the binary number 1010 1101?

Which of the following ports and protocols would Bert, the system admin set up to centralize log data, simplifying network management, troubleshooting, and security monitoring by consolidating logs from multiple sources into a single location?

Which protocol and port are used by the DHCP server to listen for incoming DHCP client messages?

Convert the hexadecimal 0x7F to decimal

Barney is learning to use the command line on his computer. What will Barney be able to view when he types arp -a into the command prompt?

Which of the following is the binary conversion of decimal 170?

Convert decimal 200 to hexadecimal.

Jack, the senior network admin is currently on vacation and has received an emergency notification regarding his company's network that requires urgent attention. Jill, the network technician attempted to troubleshoot the issue to no avail. Jill sent the notification, and Jack is now in need of a secure remote connection to identify the issue. Which of the following protocol will enable secure remote connection?

Molly is on a business trip, and she needs to set up a VPN connection to her office. Which of the following options will enable Molly to set up the VPN connection using a web browser?

What fields in the IPv4 & IPv6 packet headers are used to prevent packets from looping indefinitely? (Multiple Answers)

Fred, the network tech is using a Windows command prompt to identify the path a packet is taking to a remote host. What command will Fred use to identify the path?

Melissa, a software developer needs to access her office computer from home securely on a Windows machine. Which protocol and port will support this functionality?

How many broadcast domains are represented in the network topology below?

What is the purpose of a DHCP lease?

Which of the following describes the MAC address format used for broadcasting requests to all devices on a network?

A gaming company has opened a new office in another city. The new office has deployed multiple independent access points. The employees are reporting dropped connections when roaming. Which of the following can be implemented to reduce the dropped connections?

Sam is working remotely from home. He uses a VPN gateway to access his office securely and he is also able to use his client machine's internet connection to shop on Amazon. What type of VPN tunnel is Sam using?

When setting up a DHCP reservation for a network device; what information is needed to configure the reservation?

After defining a DHCP scope and applying exclusion ranges of network addresses, what remains for DHCP to assign dynamic IP addresses?

A network’s DHCP lease time is set to 4 hours. At what time will a device with this lease typically start trying to rebind, given the default T2 timer setting?

VPNs can be used to improved online gaming; it reduces lag and provides a more stable connection. What are the protocols needed to create a secure VPN connection? (Multiple Answers)

You are a networking student studying for your next exam, on your monitor you have multiple webpages open as you are expanding your mind with networking concepts. Which of the following options is able to differentiate the various requests for your multiple webpages?

Contention methods are techniques used in networking to manage how multiple users or devices access shared resources, particularly in scenarios where simultaneous access could lead to conflicts or collisions. What contention method does 802.11 use to listen for collisions?

Which of the following is the correct syntax of the domain name? https://example.gov.us.

Victoria, the network admin has been tasked with configuring and deploying multiple lightweight access point for her organization. Which of the following controllers will enable Victoria to accomplish her task?

Jody works remotely from home and is in need to connect to her company's internal network from her laptop using pre-installed VPN software. What type of VPN connection is being used?

A new startup company requires a 1 Gbps Ethernet over twisted-pair copper cables for their office network. What ethernet cable standard should they implement?

A multinational corporation requires secure connectivity between their branch offices in multiple countries. Which VPN type should they implement?

Dean the system admin suspects that a specific port required by an application might be blocked by the firewall. To see if the application is listening on that port, which command should Dean run?

An organization’s remote office uses a VPN, with all network traffic encapsulated and protected as it travels over the public internet. Which two protocols are likely involved in providing encryption and encapsulation?

A technician is tasked with connecting two floors of an office using a 1 Gbps over fiber for a distance of 200 meters. Which 802.3 ethernet standard is suitable?

A network device needs to determine if an incoming packet has reached a specified Time-to-Live (TTL) limit, requiring an error message to be sent to the sender. Which protocol supports this functionality?

A company allows remote employees to access only specific internal applications through the VPN while their other internet traffic goes directly through their local internet. Which VPN tunnel setup does this describe?

How does TCP guarantee delivery of segments to the receiver?

A software development company is setting up a VPN and wants to enforce that only authorized devices with certain security configurations can connect. This is part of which aspect of VPN configuration?

To establish a secure VPN, two devices negotiate encryption keys automatically without requiring a manual setup. Which protocol facilitates this key exchange?

Sam, the network engineer wants to secure communications between two devices on the same network segment, providing confidentiality, integrity, and authentication without encapsulating the original IP header. Which IPsec mode should be used?

If a client reaches the T2 Timer, which is set for 87.5% of the lease duration, what action does it take?

When using Network Discovery Protocol, there are two multicast IPv6 addresses for the use of obtaining dynamic IPv6 address information. Multicast address: ff02::1 is sent to all networking devices Multicast address: ff02::2 is sent to all routers only

An IoT company sets up a DNS server within its network to resolve internal resources. This DNS server is only accessible from within the company. What type of DNS server is this?

To secure email delivery, a domain uses a TXT(SPF) Sender Policy Framework record. What is the purpose of this SPF record in DNS?

IPv4 and IPv6 Packet headers both contain protocol fields (IPv4: protocol field and IPv6: Next Header), the value that is contained in the field specifies the upper layer protocols that will receive the data of the packet on the destination device. Which of the following protocol values indicates ICMP?

A company wants to ensure secure and authenticated time synchronization for its devices to prevent spoofing attacks on the time server. Which protocol extension should they use?

A network engineer is configuring time synchronization for a large network. They need a simple protocol that can provide accurate time down to milliseconds and works well over the internet. Which protocol is best suited? Hint: Port 123

A domain’s NS records list contains the following, ns1.example.com and ns2.example.com. What is the purpose of these NS records?

A network administrator wants to specify key domain information, such as the primary DNS server and the contact email. Which DNS record type should be configured?

A company is running multiple mail servers for reliability, with priorities assigned for routing. Which DNS record type allows assigning priority values to mail servers?

You are working on a Packet Tracer lab and have been tasked with encrypting all plaintext passwords. Which of the following commands will encrypt all readable passwords?

An organization uses DKIM to sign emails for authentication. In which type of DNS record is the DKIM public key published?

A network administrator needs to configure DNS and gateway settings to be automatically assigned to DHCP clients. Which DHCP feature should they configure?

A company needs to map a specific IP address back to a domain name for reverse DNS lookup. Which DNS record type is used?

If a device fails to obtain an IP address from the DHCP server, it assigns itself an IP in the range 169.254.x.x. What is this feature called?

To ensure that only authorized certificate authorities can issue certificates for a domain, which DNS record should be set?

Bob's device requests example.com and relies on all DNS servers to perform all necessary lookups until it returns the final DNS answer. What type of query is this?

An organization wants to publish the location and protocol information for a specific service, such as a VoIP service. Which DNS record type is appropriate for this use?

A DNS query is sent, and the DNS server refers the client to another DNS server instead of providing a direct answer. What type of query response is this?

A user tries to access a website and sees the full name www.example.com. including the final dot. What is this complete name known as?

An organization owns the domain example.com and wants to modify the domain name to blog.example.com. What part of the domain is blog?

A network administrator needs to prevent certain IP addresses within the DHCP scope from being assigned to clients. What feature allows them to exclude these addresses?

A user accesses a private server by its hostname without querying DNS because the server’s address is stored locally. Where is this information likely kept for the private server?

A DNS server answers a request with cached information it received from another DNS server, rather than from its own records. What type of response is this?

After the DORA process, a client receives an IP address. When the T1 time is reached, the client will attempt to renew the IP address. Which part of the DORA process should it initiate to renew the lease?

A DHCP server in a large network is on a different network than some of its clients. How can the clients in these remote networks receive IP addresses from the DHCP server?

You are working on a Packet Tracer lab and have been tasked with adding an IP address to your network device on port f0/1. Which of the following command sequences will add an IP address to your network device?

In an Ethernet frame, which field contains the unique hardware address used to identify devices on the local network segment?

A DHCP server has assigned all available IP addresses in its scope, and a new device cannot connect due to lack of IP addresses. What could the network administrator do to expand available addresses?

In an IPv6 network, clients can auto-configure IP addresses without a DHCP server. What is this IPv6 feature called?

While analyzing network traffic, a technician finds an error in an Ethernet frame's data. Which field in the frame is responsible for error-checking and helps verify the integrity of the transmitted data?

The DHCP administrator sets a time limit on how long an IP address is leased to a device before it needs to be renewed. What is this called?

Encapsulation is the process of adding headers and trailers to the data payload as it traverses up the OSI layers (1-7). De-encapsulation is the process of removing headers and trailers from the data payload as it traverses down the OSI layers (7-1).

Parker the network engineer is analyzing packet data and needs to identify which protocol at the Layer 3 Network layer will handle the packet once it is received. Which sublayer of the Data Link layer provides this information?