Modules 5 - 10: Network Fundamentals Group Exam
An employee complains that a Windows PC cannot connect to the Internet. A network technician issues the ipconfig command on the PC and is shown an IP address of 169.254.10.3. Which two conclusions can be drawn? (Choose two.)
-The PC cannot contact a DHCP server. -The PC is configured to obtain an IP address automatically.
Which two operations are provided by TCP but not by UDP? (Choose two.)
-acknowledging received data -retransmitting any unacknowledged data
Which two ICMP messages are used by both IPv4 and IPv6 protocols? (Choose two.)
-route redirection -protocol unreachable
A PC is downloading a large file from a server. The TCP window is 1000 bytes. The server is sending the file using 100-byte segments. How many segments will the server send before it requires an acknowledgment from the PC?
10 segments
A device has been assigned the IPv6 address of 2001:0db8:cafe:4500:1000:00d8:0058:00ab/64. Which is the host identifier of the device?
1000:00d8:0058:00ab
What is the full decompressed form of the IPv6 address 2001:420:59:0:1::a/64?
2001:0420:0059:0000:0001:0000:0000:000a
Refer to the exhibit. A network security analyst is examining captured data using Wireshark. The captured frames indicate that a host is downloading malware from a server. Which source port is used by the host to request the download?
48598
A host PC is attempting to lease an address through DHCP. What message is sent by the server to let the client know it is able to use the provided IP information?
DHCPACK
What network service uses the WHOIS protocol?
DNS
Which field in an IPv4 packet header will typically stay the same during its transmission?
Destination Address
What addresses are mapped by ARP?
IPv4 address to a destination MAC address
What is done to an IP packet before it is transmitted over the physical medium?
It is encapsulated in a Layer 2 frame.
What action does a DHCPv4 client take if it receives more than one DHCPOFFER from multiple DHCP servers?
It sends a DHCPREQUEST that identifies which lease offer the client is accepting.
Match the application protocols to the correct transport protocols.
TCP -FTP -HTTP -SMTP UDP -DHCP -TFTP
Which statement describes the ping and tracert commands?
Tracert shows each hop, while ping shows a destination reply only.
A cybersecurity analyst believes an attacker is spoofing the MAC address of the default gateway to perform a man-in-the-middle attack. Which command should the analyst use to view the MAC address a host is using to reach the default gateway?
arp -a
Which networking model is being used when an author uploads one chapter document to a file server of a book publisher?
client/server
Match each statement about FTP communications to the connection it describes. (Not all options are used.)
first connection established -from client to server via TCP port 21 -used for commands and replies second connection established -from client to server via TCP port 20 -used for actual file transfer
A user issues a ping 192.168.250.103 command and receives a response that includes a code of 1 . What does this code represent?
host unreachable
A user issues a ping 2001:db8:FACE:39::10 command and receives a response that includes a code of 2. What does this code represent?
protocol unreachable
Which PDU is processed when a host computer is de-encapsulating a message at the transport layer of the TCP/IP model?
segment
Refer to the exhibit. PC1 attempts to connect to File_server1 and sends an ARP request to obtain a destination MAC address. Which MAC address will PC1 receive in the ARP reply?
the MAC address of the G0/0 interface on R1
A user sends an HTTP request to a web server on a remote network. During encapsulation for this request, what information is added to the address field of a frame to indicate the destination?
the MAC address of the default gateway
What is a description of a DNS zone transfer?
transferring blocks of DNS data from a DNS server to another server
A user is executing a tracert to a remote device. At what point would a router, which is in the path to the destination device, stop forwarding the packet?
when the value in the TTL field reaches zero
