Technologies & Infrastructure Flashcards
7 cards from real TMP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Technologies & Infrastructure flashcards as text
In a telecom data center, what does the term PUE (Power Usage Effectiveness) measure?
Answer: The ratio of total facility power to IT equipment power, where 1.0 is perfect efficiency
PUE = total facility energy divided by IT equipment energy; a PUE of 1.0 means all power goes to IT with zero overhead from cooling and infrastructure.
Which routing protocol is most commonly used for inter-AS (Autonomous System) routing on the internet backbone?
Answer: BGP-4
BGP-4 (Border Gateway Protocol version 4) is the de facto standard exterior gateway protocol used to exchange routing information between autonomous systems on the internet.
A carrier deploys Carrier Ethernet with E-Line service. What type of logical connection does E-Line provide?
Answer: Point-to-point Ethernet Virtual Connection between two sites
E-Line (defined by MEF) provides a point-to-point Ethernet Virtual Connection (EVC) between exactly two User-Network Interfaces (UNIs).
What is the function of the Mobility Management Entity (MME) in an LTE Evolved Packet Core (EPC)?
Answer: It manages UE attach/detach, authentication, and mobility signaling in the control plane
The MME handles all control-plane signaling for LTE, including subscriber authentication, bearer establishment, and tracking area management during UE mobility.
In a fiber-to-the-home (FTTH) GPON deployment, what is the maximum logical split ratio per OLT port?
Answer: 1:64
GPON (ITU-T G.984) supports a maximum logical split ratio of 1:64, meaning one OLT port can serve up to 64 ONUs/ONTs over a passive optical distribution network.
Which technology allows a telecom operator to run multiple virtual network functions (VNFs) on commodity hardware instead of proprietary appliances?
Answer: Network Functions Virtualization (NFV)
NFV decouples network functions (firewalls, load balancers, IMS) from proprietary hardware and runs them as software VNFs on standard COTS servers.
A TMP candidate reviews a network diagram showing SS7 links labeled 'A', 'B', 'C', and 'D'. What does an 'F' link represent in SS7?
Answer: A link between two STPs of the same pair (mated pair)
In SS7, an 'F' (fully associated) link directly connects two signaling points that exchange traffic, but the term 'F' link specifically refers to the link between mated STPs.