Logistics Consulting Operations Flashcards

Question 1

What is logistics in a business setting, and what does it include?

Accepted Answer

Logistics is the planning and control of how goods, services, and information move and are stored from origin to consumption. It covers procurement, transportation, warehousing, and inventory control. Its goal is getting the right product to the right place at the right time and cost.

Question 2

What is the difference between a supply chain and logistics?

Accepted Answer

A supply chain is the entire network of organizations, activities, and resources that brings a product from raw materials to the end customer. Logistics is one part of that network, focused on moving and storing goods and information within it. Supply chain management coordinates these partners.

Question 3

What are the main flows managed in a supply chain?

Accepted Answer

The main flows are physical product flow, information flow, and financial flow. Physical flow moves goods from suppliers to customers, and reverse flow returns products or materials back through the system. Information flow carries orders, forecasts, and shipment status, while financial flow covers payments, credit terms, and invoices. Managing them together reduces delays.

Question 4

Why do logistics costs matter to a company's overall performance?

Accepted Answer

Logistics costs are often a large share of total operating expense, so small efficiency gains can produce meaningful savings. Costs typically include transportation, warehousing, inventory carrying, and administration. Logistics also affects service levels, since late or damaged deliveries hurt customer retention. Consultants therefore evaluate total landed cost rather than freight rates alone.

Question 5

What is the total landed cost of a shipment?

Accepted Answer

Total landed cost is the full price of getting a product to its final location, including purchase price, freight, duties, insurance, handling, and storage. It differs from the quoted unit price because many costs appear only after the order is placed. Comparing suppliers or routes on landed cost reveals which option is cheapest.

Question 6

What is the role of a service level in logistics planning?

Accepted Answer

A service level is a target for how reliably a logistics system meets customer needs, such as the percentage of orders shipped complete and on time. Planners set service targets first, then design inventory and transportation to achieve them at the lowest cost. Targets should reflect what customers value, since higher targets raise costs.

Question 7

How does the bullwhip effect affect supply chains?

Accepted Answer

The bullwhip effect describes how changes in customer demand grow into larger swings in orders as they move upstream through distributors, manufacturers, and suppliers. Each partner orders based on its own forecast and adds safety buffers, which amplifies variability. Consultants reduce it by sharing point-of-sale data, shortening lead times, and using common replenishment rules.

Question 8

What is the difference between a push and a pull system?

Accepted Answer

A push system produces and ships goods based on forecasts, moving inventory forward before customers order it. A pull system releases work only when downstream demand signals a need, which limits buildup. Pull approaches reduce inventory and waste but require reliable demand signals and short, dependable lead times.

Question 9

What does network design mean in logistics consulting work?

Accepted Answer

Network design determines how many facilities a company needs, where they should be located, what each should do, and which customers each serves. Consultants model these choices to balance transportation cost, facility cost, inventory investment, and service. The output is a recommended configuration, such as which plants and warehouses to keep open or close.

Question 10

What factors drive the location of a distribution center?

Accepted Answer

Key location factors include customer demand density, transportation access, labor availability, real estate costs, and tax or incentive conditions. Consultants also weigh proximity to suppliers, the mix of inbound and outbound freight, and expansion room. Most analyses combine these factors into a scoring model or a center-of-gravity calculation, then test the leading sites.

Question 11

What is the center-of-gravity method, and what is it used for?

Accepted Answer

The center-of-gravity method is a simple location technique that finds the point minimizing weighted distance to a set of demand or supply points. Each location is weighted by volume, so heavier flows pull the answer closer. It gives a starting estimate for one new facility, but ignores road networks, capacity limits, and fixed costs.

Question 12

What is the difference between a single-echelon and multi-echelon network?

Accepted Answer

A single-echelon network has one level of facilities between the source and the customer, such as one distribution center serving all regional customers directly. A multi-echelon network adds layers, such as plants feeding regional hubs that feed local warehouses. Additional layers can reduce transportation cost for large volumes but add handling, inventory, and coordination complexity.

Question 13

How do consultants evaluate whether to consolidate facilities?

Accepted Answer

Consultants compare the current network with consolidated scenarios using a total cost model that includes freight, facility operating costs, inventory holding, and fixed charges. They also test service impact by measuring delivery times to customers under each option. Consolidation often lowers fixed costs and improves inventory pooling, but it can lengthen delivery times.

Question 14

What is safety stock and where does it sit in a network?

Accepted Answer

Safety stock is extra inventory held to protect against variability in demand and supply lead times. In a network it is positioned strategically, since pooling it at fewer locations reduces total inventory for the same service level. Central stocking points can cover uncertainty for many regions, while regional sites hold stock closer to fast-moving customers.

Question 15

Why do consultants run sensitivity analysis on network models?

Accepted Answer

Sensitivity analysis tests how the recommended network changes when key assumptions shift, such as fuel prices, demand growth, or carrier rates. Because forecasts are uncertain, a design that is best under one scenario may perform poorly under another. Running multiple cases helps consultants identify robust configurations that remain cost effective across plausible futures.

Question 16

What is a cross-dock facility and when is it useful?

Accepted Answer

A cross-dock facility receives inbound goods, sorts them by destination, and transfers them directly to outbound trucks with little or no storage. It is useful when products move in high volume with predictable demand and short handling windows, such as retail replenishment or consolidating less-than-truckload shipments. Cross-docking reduces storage cost and speeds delivery.

Question 17

What does transportation management cover in a logistics operation?

Accepted Answer

Transportation management covers selecting modes and carriers, planning routes and loads, tendering shipments, tracking movements, and auditing freight invoices. It connects network decisions to daily execution, turning facility locations and inventory targets into actual truck, rail, ocean, or air moves. Good transportation management balances cost, speed, reliability, and carrier performance across the lane portfolio.

Question 18

What is a lane in transportation planning, and why does it matter?

Accepted Answer

A lane is a defined origin and destination pair, often with a specified mode, service level, and carrier. Lanes are the basic unit for rate negotiation, since carriers price freight by lane and volume commitment. Analyzing lanes shows which routes generate the most spend and where consolidating loads could reduce cost per shipment.

Question 19

How do full truckload and less-than-truckload shipments differ?

Accepted Answer

A full truckload shipment occupies an entire trailer, usually moving directly from origin to destination with minimal handling. A less-than-truckload shipment shares trailer space with other customers' freight, so it is consolidated at terminals along the way. Less-than-truckload usually costs more per pound for small shipments but suits volumes too small to fill a trailer.

Question 20

What is the purpose of a transportation management system?

Accepted Answer

A transportation management system is software that helps plan, execute, and analyze freight movements. It handles load building, carrier selection, rate shopping, shipment tracking, documentation, and freight audit. Consultants use these systems to standardize processes, capture shipment data, and support decisions. The software does not replace sound lane strategy, since poor inputs produce poor routing.

Question 21

How do carrier contracts and spot market rates differ?

Accepted Answer

Contracted rates are negotiated in advance for a set period, usually tied to committed volume, and they give budget predictability. Spot rates are quoted for individual shipments when capacity is needed on short notice, so they can be much higher or lower than contract levels. Most shippers combine both for baseline and surplus volume.

Question 22

What is a freight audit and why is it valuable?

Accepted Answer

A freight audit reviews carrier invoices against contracted rates, accessorial rules, and proof of delivery before payment. It catches billing errors, duplicate charges, and incorrect weights or classifications that often go unnoticed in high volume. Recovered overcharges and cleaner data help consultants identify where rate negotiation or process changes will produce the most savings.

Question 23

How do consultants measure and compare carrier performance over time?

Accepted Answer

Consultants track on-time delivery, damage rates, tender acceptance, invoice accuracy, and claims frequency for each carrier and lane. They compare results against agreed service levels and contract terms, then review trends with the carrier. Scorecards make performance visible, support renewal decisions, and identify carriers that need corrective action or replacement early.

Question 24

What is route optimization and what constraints does it handle?

Accepted Answer

Route optimization is the process of sequencing stops and assigning vehicles to minimize distance, time, or cost while meeting operating rules. Common constraints include delivery time windows, vehicle capacity, driver hours, equipment type, and customer access restrictions. Solvers can produce strong plans quickly, but planners must still validate results.

Question 25

How does mode selection affect cost and service?

Accepted Answer

Mode selection chooses among truck, rail, ocean, air, and intermodal options based on distance, weight, value, urgency, and cost. Air is fast but expensive, while ocean and rail are slow and inexpensive for large, less urgent volumes. Trucking offers door-to-door flexibility. Consultants often recommend intermodal combinations that balance these trade-offs for long lanes.

Question 26

What are the main activities inside a warehouse?

Accepted Answer

The core warehouse activities are receiving, put-away, storage, order picking, packing, shipping, and returns processing. Receiving verifies inbound quantities and condition, while put-away assigns storage locations. Picking is usually the most labor-intensive activity, so layouts and processes are designed to shorten travel and reduce errors. Value-added services such as kitting or labeling may occur.

Question 27

What is the difference between a cycle count and a physical inventory?

Accepted Answer

A cycle count checks a small subset of inventory locations on a rotating schedule while operations continue. A physical inventory counts everything at once, usually during a shutdown or cutoff, to establish a full baseline. Cycle counting catches errors early and avoids large disruptions, but full counts remain useful for audits, periodic financial reconciliation.

Question 28

What is inventory accuracy and why does it matter?

Accepted Answer

Inventory accuracy is the degree to which system records match physical stock on hand at a given location and time. Inaccurate records cause missed orders, unnecessary safety stock, excess expediting, and poor purchasing decisions. Consultants measure accuracy through cycle count results and target high levels in fast-moving locations first, since those errors affect service most.

Question 29

What is slotting and how does it improve picking efficiency?

Accepted Answer

Slotting is the assignment of products to specific storage locations based on demand, size, weight, and compatibility. Fast-moving items are placed in easy-to-reach locations near shipping areas, while heavy items go at lower levels. Good slotting shortens travel distance for pickers, reduces congestion, and lowers labor cost per order.

Question 30

What is the economic order quantity and what does it assume?

Accepted Answer

Economic order quantity is the order size that balances ordering cost against holding cost, minimizing total inventory cost for a product. The standard formula uses annual demand, cost per order, and annual holding cost per unit. It assumes steady demand, fixed costs, and no quantity discounts, so consultants treat it as a starting point.

Question 31

What is a reorder point and how is it calculated?

Accepted Answer

A reorder point is the inventory level at which a new order should be placed so stock arrives before running out. It equals average demand during replenishment lead time plus safety stock. Reorder points work well for stable, frequently sold items, while periodic review systems suit items checked on a fixed schedule.

Question 32

What is ABC analysis and how do consultants use it?

Accepted Answer

ABC analysis ranks inventory items by annual dollar usage or value, grouping the highest-value items as A, middle items as B, and low-value items as C. A items usually receive the tightest control, frequent counts, and close forecasting, while C items may use simpler rules. Consultants use it to focus effort where it matters.

Question 33

What is a warehouse management system and what does it control?

Accepted Answer

A warehouse management system is software that directs and records warehouse activity, from receiving and putaway to picking, packing, and shipping. It maintains inventory by location, assigns tasks to workers, and generates labels and documents. Its value depends on data entry and well-designed processes, since software cannot correct a messy layout or poor receiving.

Question 34

How do returns affect warehouse operations and inventory?

Accepted Answer

Returns add unplanned inbound work, since products must be received, inspected, graded, and either restocked, refurbished, or disposed of. Returned items often sit in a separate inventory status, which can make available stock look lower than it is. Consultants address returns by setting clear disposition rules, fast inspection, and visibility of return status.

Question 35

What are the typical phases of a logistics consulting engagement?

Accepted Answer

A typical engagement moves through scoping, diagnosis, solution design, business case development, implementation planning, and handoff. Scoping defines objectives and data access, while diagnosis measures current costs, service, and process gaps. Solution design produces options that are tested with models, and the business case quantifies benefits and risks.

Question 36

What is a current-state assessment and what does it include?

Accepted Answer

A current-state assessment documents how the client's logistics system works today, including network structure, flows, costs, service performance, and systems. It relies on data requests, interviews with operators and managers, site observations, and process mapping. Its purpose is to establish a fact-based baseline so proposed improvements can be measured against real performance.

Question 37

How do consultants build a business case for a logistics change?

Accepted Answer

A logistics business case compares the expected costs and benefits of a proposed change against the status quo over a defined horizon. Benefits may include freight savings, lower inventory, better service, and avoided capital spending, while costs include implementation, training, system changes, and transition disruption. Consultants present the result with assumptions and sensitivity ranges.

Question 38

What is the difference between a KPI and a diagnostic metric?

Accepted Answer

A key performance indicator is a headline measure tied to an objective, such as on-time in-full percentage or cost per shipment. A diagnostic metric is a more detailed measure used to explain why the headline result moved, such as dock dwell time or pick rate by zone. Both are needed for action.

Question 39

Which metrics are commonly used to evaluate warehouse performance?

Accepted Answer

Common warehouse metrics include order accuracy, units picked per labor hour, dock-to-stock time, inventory accuracy, on-time shipment rate, and cost per order shipped. Each measure should have a clear definition, data source, and owner so results can be compared consistently. Consultants watch for metrics that conflict, such as speed targets that increase picking errors.

Question 40

Why is change management important in logistics consulting projects?

Accepted Answer

Change management matters because even a sound logistics design fails if frontline teams do not adopt new processes, systems, or metrics. Consultants involve operators early, explain the reasons for change, and provide training that fits real shift schedules. They also identify who gains and who loses from the change, since resistance reflects unclear incentives.

Question 41

How do consultants handle data quality problems during an engagement?

Accepted Answer

Consultants first profile the data to find missing fields, duplicate records, unit mismatches, and timing gaps that could distort results. They document each issue, estimate its impact on conclusions, and agree on reasonable corrections with the client. Where data is unreliable, they state assumptions openly and recommend governance fixes.

Question 42

What is the role of a pilot in logistics implementation?

Accepted Answer

A pilot tests a proposed change in one lane, facility, or product group before full rollout. It exposes practical problems that models miss, such as system integration gaps or unexpected carrier behavior. Pilots should have clear success criteria, a duration, and a plan for scaling or reversing the change, so the client can decide.

Question 43

How should a consultant handle a recommendation that the client rejects?

Accepted Answer

A consultant should first understand the reasons behind the rejection, since cost, risk, timing, or missing information often drive it. The consultant can then test alternative options, refine assumptions, or share sensitivity results that address the concern. Clear documentation of tradeoffs keeps the discussion objective, and the final decision remains the client's to make.

Question 44

What ethical principles guide logistics consultants when handling client data?

Accepted Answer

Logistics consultants should protect confidential client information, avoid conflicts of interest, and disclose any relationships with carriers, vendors, or technology providers that could influence advice. They should use client data only for the agreed purpose and secure it according to contract terms. Recommendations must be based on objective analysis rather than vendor preference.

Question 45

How does a consultant verify that implemented improvements are sustained?

Accepted Answer

Consultants verify sustainment by comparing post-implementation metrics against the baseline and targets at agreed intervals. They review control charts, audit process compliance, and confirm that new roles, procedures, and system settings remain in use. Governance meetings with clear owners help catch backsliding early, and handover documents ensure the client team can keep the gains.

Question 46

What makes a logistics recommendation credible to executives?

Accepted Answer

Executives find recommendations credible when they are tied to measured baseline performance, transparent assumptions, and quantified financial impact. Clear options with tradeoffs, realistic implementation timelines, and named owners also build confidence. Consultants strengthen credibility by acknowledging uncertainty, showing sensitivity results, and explaining what would change the recommendation.

Logistics Consulting Operations Flashcards

1Core Logistics Concepts

2Network Design and Location

3Transportation Management Fundamentals

4Warehouse and Inventory Operations

5Engagement Process and Performance

Learning Resources