Networking plus
What statement regarding the differences between the Windows tracert utility and the Linux/UNIX/macOS traceroute utility is accurate?
By default, the tracert utility uses ICMP echo requests, while traceroute uses UDP datagrams or TCP SYN messages.
What field in an IPv4 packet informs routers the level of precedence they should apply when processing an incoming packet?
Differentiated Services (DiffServ)
Which routing protocol started as a Cisco proprietary protocol and combines some of the features of a link-state protocol with that of distance-vector protocols?
EIGRP
What is a data-link connection identifier (DLCI) utilized for?
It is used by routers to determine which circuit to forward a frame to in a frame relay network.
What statement correctly describes "jitter"?
Jitter is what happens when packets experience varying amounts of delay and arrive out of order.
During termination of twisted pair cabling, what should be done to ensure minimal cross talk is introduced?
No more than 1 inch of the cable should be exposed.
What is NOT a TIA/EIA recognized cabling type that can be used for horizontal cabling?
RG-6 Coaxial
Considering that multiple users occupy the same channel when using CDMA, how are various calls using this technology kept separate?
. The packets are coded such that individual calls can be distinguished.
Which of the following is NOT a range of IP addresses recommended for use in private networks?
127.0.0.0 through 127.255.255.255
If the VLAN tag is present in an Ethernet frame, what is the maximum frame size?
1522 bytes
How many transponders are contained within a typical satellite?
24 to 32
When terminating an Ethernet cable, about how far should the cable sheath extend into the plug?
3/8 of an inch
What is the maximum throughput of a DS3 connection?
44.736 Mbps
A fractional T1's bandwidth can be leased multiples of what data rate?
64 kbps
In a domain, the process of allowing a user to sign on to the network from any computer on the network and get access to resources is managed by what service?
Active Directory Domain Services (AD DS)
What statement accurately reflects what occurs when a message is too large to transport on a network?
The message is divided into smaller messages called segments (for TCP) or datagrams (for UDP).
What occurs if a network layer protocol is aware that a packet is larger than the maximum size for its network?
The packet will be divided into smaller packets using fragmentation.
What happens when a router receives a packet with a TTL of 0?
The router drops the packet and sends an ICMP TTL expired message back to the host.
In a voice over IP setup (VoIP), what kind of device converts signals from a campus's analog phone equipment into IP data that can travel over a phone company's analog telephone lines?
VoIP gateway
How do routers create a broadcast domain boundary?
X
PoE+ devices are defined by what IEEE standard?
X
Which statement regarding the Asynchronous Transfer Mode (ATM) technology is accurate?
X
Which of the following is a document that is sent as a request to vendors to submit a proposal for a product or service that your company wants to purchase?
request for proposal
Utilizing time slots that are adjusted according to priority and need is an example of what type of multiplexing on copper lines?
statistical time division multiplexing
A hexadecimal number is a number written in the base 16 number system.
t
At the root level of the DNS hierarchical structure, 13 clusters of root servers hold information used to locate TLD servers.
t
Each type of cable has a prescribed bend radius, which is the radius of the maximum arc into which you can loop a cable without impairing data transmission.
t
In a frame relay WAN, the ISP typically has the data circuit terminating equipment (DCE).
t
Most satellites circle the Earth 22,300 miles above the equator in a geosynchronous orbit.
t
When using IPv6, two or more nodes on the same link are said to be neighbors.
t
When dealing with static electricity, what kind of failure caused by static discharge shortens the life of a component, and can cause intermittent errors?
upset failure
Encrypted control of remote computers using the RDP protocol is accomplished using what port number?
TCP 3389
What standard describes uniform, enterprise-wide cabling systems, regardless of who manufactures or sells the various parts used in the system?
TIA/EIA-568
What statement regarding main distribution frame or main distribution facilities is accurate?
The MDF is the centralized point of interconnection for an organization's LAN or WAN.
You are troubleshooting a network issue on a client computer and discover that the network card has an IP address of 169.254.196.200. What does this mean?
The computer is configured to use DHCP, but was unable to lease an address
What is the minimum category of UTP cable required in order to support Gigabit speeds?
cat 5e
A typical fiber termination kit should include what tool for cutting a clean slice through fiber strands?
cleaver
F5 Networks set the standard for the diagram symbols used to represent routers, switches, firewalls, and other devices.
f
ICANN is responsible for restrictions on use of the .com, .org, and .net TLDs.
f
In a rack setup, a device called a KVM allows multiple consoles to connect to a single device on the rack.
f
RG-59 is more expensive than RG-6, but has better resistance to attenuation.
f
The CTRL + S key combination can be used to stop an actively running command.
f
The FTP protocol utilizes UDP, while TFTP uses TCP for data transmission.
f
The pathping utility sends 10 pings per hop by default.
f
What routing metric affects a path's potential performance due to delay?
latency
Routing protocols that enable routers to communicate beyond neighboring routers, allowing each router to independently map the network, are known as which type of protocols?
link state protocols
You've been handed a fiber with a 1.25-mm ferrule that requires a connector. What is the most commonly used connector for this ferrule size?
local connector (LC)
In the TCP/IP model, what layer is considered so simple that it is ignored entirely?
physical
When using DHCP for IPv6 (i.e. DHCPv6), what port do clients receive responses on?
port 547
